19957187880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{419}}^1\times {\mathrm{461}}^1$

素因数の和:945

約数の個数: 384

約数和(自身を含む): 76281004800

約数和(自身を除く): 56323816920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 56, 60, 63, 70, 72, 82, 84, 90, 105, 120, 123, 126, 140, 164, 168, 180, 205, 210, 246, 252, 280, 287, 315, 328, 360, 369, 410, 419, 420, 461, 492, 504, 574, 615, 630, 738, 820, 838, 840, 861, 922, 984, 1148, 1230, 1257, 1260, 1383, 1435, 1476, 1640, 1676, 1722, 1844, 1845, 2095, 2296, 2305, 2460, 2514, 2520, 2583, 2766, 2870, 2933, 2952, 3227, 3352, 3444, 3688, 3690, 3771, 4149, 4190, 4305, 4610, 4920, 5028, 5166, 5532, 5740, 5866, 6285, 6454, 6888, 6915, 7380, 7542, 8298, 8380, 8610, 8799, 9220, 9681, 10056, 10332, 11064, 11480, 11732, 12570, 12908, 12915, 13830, 14665, 14760, 15084, 16135, 16596, 16760, 17179, 17220, 17598, 18440, 18855, 18901, 19362, 20664, 20745, 23464, 25140, 25816, 25830, 26397, 27660, 29043, 29330, 30168, 32270, 33192, 34358, 34440, 35196, 37710, 37802, 38724, 41490, 43995, 48405, 50280, 51537, 51660, 52794, 55320, 56703, 58086, 58660, 64540, 68716, 70392, 75420, 75604, 77448, 82980, 85895, 87990, 94505, 96810, 103074, 103320, 105588, 113406, 116172, 117320, 120253, 129080, 131985, 132307, 137432, 145215, 150840, 151208, 154611, 165960, 170109, 171790, 175980, 189010, 193159, 193620, 206148, 211176, 226812, 232344, 240506, 257685, 263970, 264614, 283515, 290430, 309222, 340218, 343580, 351960, 360759, 378020, 386318, 387240, 396921, 412296, 453624, 481012, 515370, 527940, 529228, 567030, 579477, 580860, 601265, 618444, 661535, 680436, 687160, 721518, 756040, 772636, 773055, 793842, 850545, 962024, 965795, 1030740, 1055880, 1058456, 1082277, 1134060, 1158954, 1161720, 1190763, 1202530, 1236888, 1323070, 1352113, 1360872, 1443036, 1545272, 1546110, 1587684, 1701090, 1738431, 1803795, 1931590, 1984605, 2061480, 2164554, 2268120, 2317908, 2381526, 2405060, 2646140, 2704226, 2886072, 2897385, 3092220, 3175368, 3402180, 3476862, 3607590, 3863180, 3969210, 4056339, 4329108, 4635816, 4763052, 4810120, 5292280, 5408452, 5411385, 5794770, 5953815, 6184440, 6760565, 6804360, 6953724, 7215180, 7726360, 7919519, 7938420, 8112678, 8658216, 8692155, 9526104, 10816904, 10822770, 11589540, 11907630, 12169017, 13521130, 13907448, 14430360, 15839038, 15876840, 16225356, 17384310, 20281695, 21645540, 23179080, 23758557, 23815260, 24338034, 27042260, 31678076, 32450712, 34768620, 39597595, 40563390, 43291080, 47517114, 47630520, 48676068, 54084520, 55436633, 60845085, 63356152, 69537240, 71275671, 79195190, 81126780, 95034228, 97352136, 110873266, 118792785, 121690170, 142551342, 158390380, 162253560, 166309899, 190068456, 221746532, 237585570, 243380340, 277183165, 285102684, 316780760, 332619798, 356378355, 443493064, 475171140, 486760680, 498929697, 554366330, 570205368, 665239596, 712756710, 831549495, 950342280, 997859394, 1108732660, 1330479192, 1425513420, 1663098990, 1995718788, 2217465320, 2494648485, 2851026840, 3326197980, 3991437576, 4989296970, 6652395960, 9978593940, 19957187880]

約数ペア:

[(1, 19957187880), (2, 9978593940), (3, 6652395960), (4, 4989296970), (5, 3991437576), (6, 3326197980), (7, 2851026840), (8, 2494648485), (9, 2217465320), (10, 1995718788), (12, 1663098990), (14, 1425513420), (15, 1330479192), (18, 1108732660), (20, 997859394), (21, 950342280), (24, 831549495), (28, 712756710), (30, 665239596), (35, 570205368), (36, 554366330), (40, 498929697), (41, 486760680), (42, 475171140), (45, 443493064), (56, 356378355), (60, 332619798), (63, 316780760), (70, 285102684), (72, 277183165), (82, 243380340), (84, 237585570), (90, 221746532), (105, 190068456), (120, 166309899), (123, 162253560), (126, 158390380), (140, 142551342), (164, 121690170), (168, 118792785), (180, 110873266), (205, 97352136), (210, 95034228), (246, 81126780), (252, 79195190), (280, 71275671), (287, 69537240), (315, 63356152), (328, 60845085), (360, 55436633), (369, 54084520), (410, 48676068), (419, 47630520), (420, 47517114), (461, 43291080), (492, 40563390), (504, 39597595), (574, 34768620), (615, 32450712), (630, 31678076), (738, 27042260), (820, 24338034), (838, 23815260), (840, 23758557), (861, 23179080), (922, 21645540), (984, 20281695), (1148, 17384310), (1230, 16225356), (1257, 15876840), (1260, 15839038), (1383, 14430360), (1435, 13907448), (1476, 13521130), (1640, 12169017), (1676, 11907630), (1722, 11589540), (1844, 10822770), (1845, 10816904), (2095, 9526104), (2296, 8692155), (2305, 8658216), (2460, 8112678), (2514, 7938420), (2520, 7919519), (2583, 7726360), (2766, 7215180), (2870, 6953724), (2933, 6804360), (2952, 6760565), (3227, 6184440), (3352, 5953815), (3444, 5794770), (3688, 5411385), (3690, 5408452), (3771, 5292280), (4149, 4810120), (4190, 4763052), (4305, 4635816), (4610, 4329108), (4920, 4056339), (5028, 3969210), (5166, 3863180), (5532, 3607590), (5740, 3476862), (5866, 3402180), (6285, 3175368), (6454, 3092220), (6888, 2897385), (6915, 2886072), (7380, 2704226), (7542, 2646140), (8298, 2405060), (8380, 2381526), (8610, 2317908), (8799, 2268120), (9220, 2164554), (9681, 2061480), (10056, 1984605), (10332, 1931590), (11064, 1803795), (11480, 1738431), (11732, 1701090), (12570, 1587684), (12908, 1546110), (12915, 1545272), (13830, 1443036), (14665, 1360872), (14760, 1352113), (15084, 1323070), (16135, 1236888), (16596, 1202530), (16760, 1190763), (17179, 1161720), (17220, 1158954), (17598, 1134060), (18440, 1082277), (18855, 1058456), (18901, 1055880), (19362, 1030740), (20664, 965795), (20745, 962024), (23464, 850545), (25140, 793842), (25816, 773055), (25830, 772636), (26397, 756040), (27660, 721518), (29043, 687160), (29330, 680436), (30168, 661535), (32270, 618444), (33192, 601265), (34358, 580860), (34440, 579477), (35196, 567030), (37710, 529228), (37802, 527940), (38724, 515370), (41490, 481012), (43995, 453624), (48405, 412296), (50280, 396921), (51537, 387240), (51660, 386318), (52794, 378020), (55320, 360759), (56703, 351960), (58086, 343580), (58660, 340218), (64540, 309222), (68716, 290430), (70392, 283515), (75420, 264614), (75604, 263970), (77448, 257685), (82980, 240506), (85895, 232344), (87990, 226812), (94505, 211176), (96810, 206148), (103074, 193620), (103320, 193159), (105588, 189010), (113406, 175980), (116172, 171790), (117320, 170109), (120253, 165960), (129080, 154611), (131985, 151208), (132307, 150840), (137432, 145215)]