1781439660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9887}}^1$

素因数の和:9933

約数の個数: 288

約数和(自身を含む): 7256051712

約数和(自身を除く): 5474612052

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 18, 20, 21, 22, 26, 28, 30, 33, 35, 36, 39, 42, 44, 45, 52, 55, 60, 63, 65, 66, 70, 77, 78, 84, 90, 91, 99, 105, 110, 117, 126, 130, 132, 140, 143, 154, 156, 165, 180, 182, 195, 198, 210, 220, 231, 234, 252, 260, 273, 286, 308, 315, 330, 364, 385, 390, 396, 420, 429, 455, 462, 468, 495, 546, 572, 585, 630, 660, 693, 715, 770, 780, 819, 858, 910, 924, 990, 1001, 1092, 1155, 1170, 1260, 1287, 1365, 1386, 1430, 1540, 1638, 1716, 1820, 1980, 2002, 2145, 2310, 2340, 2574, 2730, 2772, 2860, 3003, 3276, 3465, 4004, 4095, 4290, 4620, 5005, 5148, 5460, 6006, 6435, 6930, 8190, 8580, 9009, 9887, 10010, 12012, 12870, 13860, 15015, 16380, 18018, 19774, 20020, 25740, 29661, 30030, 36036, 39548, 45045, 49435, 59322, 60060, 69209, 88983, 90090, 98870, 108757, 118644, 128531, 138418, 148305, 177966, 180180, 197740, 207627, 217514, 257062, 276836, 296610, 326271, 346045, 355932, 385593, 415254, 435028, 444915, 514124, 543785, 593220, 622881, 642655, 652542, 692090, 761299, 771186, 830508, 889830, 899717, 978813, 1038135, 1087570, 1156779, 1245762, 1285310, 1305084, 1384180, 1413841, 1522598, 1542372, 1631355, 1779660, 1799434, 1927965, 1957626, 2076270, 2175140, 2283897, 2313558, 2491524, 2570620, 2699151, 2827682, 3045196, 3114405, 3262710, 3598868, 3806495, 3855930, 3915252, 4152540, 4241523, 4498585, 4567794, 4627116, 4894065, 5398302, 5655364, 5783895, 6228810, 6525420, 6851691, 7069205, 7612990, 7711860, 8097453, 8483046, 8997170, 9135588, 9788130, 9896887, 10796604, 11419485, 11567790, 12457620, 12724569, 13495755, 13703382, 14138410, 15225980, 16194906, 16966092, 17994340, 19576260, 19793774, 21207615, 22838970, 23135580, 25449138, 26991510, 27406764, 28276820, 29690661, 32389812, 34258455, 39587548, 40487265, 42415230, 45677940, 49484435, 50898276, 53983020, 59381322, 63622845, 68516910, 80974530, 84830460, 89071983, 98968870, 118762644, 127245690, 137033820, 148453305, 161949060, 178143966, 197937740, 254491380, 296906610, 356287932, 445359915, 593813220, 890719830, 1781439660]

約数ペア:

[(1, 1781439660), (2, 890719830), (3, 593813220), (4, 445359915), (5, 356287932), (6, 296906610), (7, 254491380), (9, 197937740), (10, 178143966), (11, 161949060), (12, 148453305), (13, 137033820), (14, 127245690), (15, 118762644), (18, 98968870), (20, 89071983), (21, 84830460), (22, 80974530), (26, 68516910), (28, 63622845), (30, 59381322), (33, 53983020), (35, 50898276), (36, 49484435), (39, 45677940), (42, 42415230), (44, 40487265), (45, 39587548), (52, 34258455), (55, 32389812), (60, 29690661), (63, 28276820), (65, 27406764), (66, 26991510), (70, 25449138), (77, 23135580), (78, 22838970), (84, 21207615), (90, 19793774), (91, 19576260), (99, 17994340), (105, 16966092), (110, 16194906), (117, 15225980), (126, 14138410), (130, 13703382), (132, 13495755), (140, 12724569), (143, 12457620), (154, 11567790), (156, 11419485), (165, 10796604), (180, 9896887), (182, 9788130), (195, 9135588), (198, 8997170), (210, 8483046), (220, 8097453), (231, 7711860), (234, 7612990), (252, 7069205), (260, 6851691), (273, 6525420), (286, 6228810), (308, 5783895), (315, 5655364), (330, 5398302), (364, 4894065), (385, 4627116), (390, 4567794), (396, 4498585), (420, 4241523), (429, 4152540), (455, 3915252), (462, 3855930), (468, 3806495), (495, 3598868), (546, 3262710), (572, 3114405), (585, 3045196), (630, 2827682), (660, 2699151), (693, 2570620), (715, 2491524), (770, 2313558), (780, 2283897), (819, 2175140), (858, 2076270), (910, 1957626), (924, 1927965), (990, 1799434), (1001, 1779660), (1092, 1631355), (1155, 1542372), (1170, 1522598), (1260, 1413841), (1287, 1384180), (1365, 1305084), (1386, 1285310), (1430, 1245762), (1540, 1156779), (1638, 1087570), (1716, 1038135), (1820, 978813), (1980, 899717), (2002, 889830), (2145, 830508), (2310, 771186), (2340, 761299), (2574, 692090), (2730, 652542), (2772, 642655), (2860, 622881), (3003, 593220), (3276, 543785), (3465, 514124), (4004, 444915), (4095, 435028), (4290, 415254), (4620, 385593), (5005, 355932), (5148, 346045), (5460, 326271), (6006, 296610), (6435, 276836), (6930, 257062), (8190, 217514), (8580, 207627), (9009, 197740), (9887, 180180), (10010, 177966), (12012, 148305), (12870, 138418), (13860, 128531), (15015, 118644), (16380, 108757), (18018, 98870), (19774, 90090), (20020, 88983), (25740, 69209), (29661, 60060), (30030, 59322), (36036, 49435), (39548, 45045)]