19961567640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{37189}}^1$

素因数の和:37287

約数の個数: 256

約数和(自身を含む): 77117184000

約数和(自身を除く): 57155616360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 71, 72, 84, 90, 105, 108, 120, 126, 135, 140, 142, 168, 180, 189, 210, 213, 216, 252, 270, 280, 284, 315, 355, 360, 378, 420, 426, 497, 504, 540, 568, 630, 639, 710, 756, 840, 852, 945, 994, 1065, 1080, 1260, 1278, 1420, 1491, 1512, 1704, 1890, 1917, 1988, 2130, 2485, 2520, 2556, 2840, 2982, 3195, 3780, 3834, 3976, 4260, 4473, 4970, 5112, 5964, 6390, 7455, 7560, 7668, 8520, 8946, 9585, 9940, 11928, 12780, 13419, 14910, 15336, 17892, 19170, 19880, 22365, 25560, 26838, 29820, 35784, 37189, 38340, 44730, 53676, 59640, 67095, 74378, 76680, 89460, 107352, 111567, 134190, 148756, 178920, 185945, 223134, 260323, 268380, 297512, 334701, 371890, 446268, 520646, 536760, 557835, 669402, 743780, 780969, 892536, 1004103, 1041292, 1115670, 1301615, 1338804, 1487560, 1561938, 1673505, 2008206, 2082584, 2231340, 2342907, 2603230, 2640419, 2677608, 3123876, 3347010, 3904845, 4016412, 4462680, 4685814, 5020515, 5206460, 5280838, 6247752, 6694020, 7028721, 7809690, 7921257, 8032824, 9371628, 10041030, 10412920, 10561676, 11714535, 13202095, 13388040, 14057442, 15619380, 15842514, 18482933, 18743256, 20082060, 21123352, 23429070, 23763771, 26404190, 28114884, 31238760, 31685028, 35143605, 36965866, 39606285, 40164120, 46858140, 47527542, 52808380, 55448799, 56229768, 63370056, 70287210, 71291313, 73931732, 79212570, 92414665, 93716280, 95055084, 105616760, 110897598, 118818855, 140574420, 142582626, 147863464, 158425140, 166346397, 184829330, 190110168, 221795196, 237637710, 277243995, 281148840, 285165252, 316850280, 332692794, 356456565, 369658660, 443590392, 475275420, 499039191, 554487990, 570330504, 665385588, 712913130, 739317320, 831731985, 950550840, 998078382, 1108975980, 1330771176, 1425826260, 1663463970, 1996156764, 2217951960, 2495195955, 2851652520, 3326927940, 3992313528, 4990391910, 6653855880, 9980783820, 19961567640]

約数ペア:

[(1, 19961567640), (2, 9980783820), (3, 6653855880), (4, 4990391910), (5, 3992313528), (6, 3326927940), (7, 2851652520), (8, 2495195955), (9, 2217951960), (10, 1996156764), (12, 1663463970), (14, 1425826260), (15, 1330771176), (18, 1108975980), (20, 998078382), (21, 950550840), (24, 831731985), (27, 739317320), (28, 712913130), (30, 665385588), (35, 570330504), (36, 554487990), (40, 499039191), (42, 475275420), (45, 443590392), (54, 369658660), (56, 356456565), (60, 332692794), (63, 316850280), (70, 285165252), (71, 281148840), (72, 277243995), (84, 237637710), (90, 221795196), (105, 190110168), (108, 184829330), (120, 166346397), (126, 158425140), (135, 147863464), (140, 142582626), (142, 140574420), (168, 118818855), (180, 110897598), (189, 105616760), (210, 95055084), (213, 93716280), (216, 92414665), (252, 79212570), (270, 73931732), (280, 71291313), (284, 70287210), (315, 63370056), (355, 56229768), (360, 55448799), (378, 52808380), (420, 47527542), (426, 46858140), (497, 40164120), (504, 39606285), (540, 36965866), (568, 35143605), (630, 31685028), (639, 31238760), (710, 28114884), (756, 26404190), (840, 23763771), (852, 23429070), (945, 21123352), (994, 20082060), (1065, 18743256), (1080, 18482933), (1260, 15842514), (1278, 15619380), (1420, 14057442), (1491, 13388040), (1512, 13202095), (1704, 11714535), (1890, 10561676), (1917, 10412920), (1988, 10041030), (2130, 9371628), (2485, 8032824), (2520, 7921257), (2556, 7809690), (2840, 7028721), (2982, 6694020), (3195, 6247752), (3780, 5280838), (3834, 5206460), (3976, 5020515), (4260, 4685814), (4473, 4462680), (4970, 4016412), (5112, 3904845), (5964, 3347010), (6390, 3123876), (7455, 2677608), (7560, 2640419), (7668, 2603230), (8520, 2342907), (8946, 2231340), (9585, 2082584), (9940, 2008206), (11928, 1673505), (12780, 1561938), (13419, 1487560), (14910, 1338804), (15336, 1301615), (17892, 1115670), (19170, 1041292), (19880, 1004103), (22365, 892536), (25560, 780969), (26838, 743780), (29820, 669402), (35784, 557835), (37189, 536760), (38340, 520646), (44730, 446268), (53676, 371890), (59640, 334701), (67095, 297512), (74378, 268380), (76680, 260323), (89460, 223134), (107352, 185945), (111567, 178920), (134190, 148756)]