20789022140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1031}}^1\times {\mathrm{1129}}^1$

素因数の和:2235

約数の個数: 96

約数和(自身を含む): 47019571200

約数和(自身を除く): 26230549060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1031, 1129, 1786, 2062, 2258, 3572, 4124, 4465, 4516, 5155, 5645, 8930, 10310, 11290, 17860, 19589, 20620, 21451, 22580, 39178, 42902, 48457, 53063, 78356, 85804, 96914, 97945, 106126, 107255, 193828, 195890, 212252, 214510, 242285, 265315, 391780, 429020, 484570, 530630, 920683, 969140, 1008197, 1061260, 1163999, 1841366, 2016394, 2327998, 3682732, 4032788, 4603415, 4655996, 5040985, 5819995, 9206830, 10081970, 11639990, 18413660, 20163940, 22115981, 23279980, 44231962, 54707953, 88463924, 109415906, 110579905, 218831812, 221159810, 273539765, 442319620, 547079530, 1039451107, 1094159060, 2078902214, 4157804428, 5197255535, 10394511070, 20789022140]

約数ペア:

[(1, 20789022140), (2, 10394511070), (4, 5197255535), (5, 4157804428), (10, 2078902214), (19, 1094159060), (20, 1039451107), (38, 547079530), (47, 442319620), (76, 273539765), (94, 221159810), (95, 218831812), (188, 110579905), (190, 109415906), (235, 88463924), (380, 54707953), (470, 44231962), (893, 23279980), (940, 22115981), (1031, 20163940), (1129, 18413660), (1786, 11639990), (2062, 10081970), (2258, 9206830), (3572, 5819995), (4124, 5040985), (4465, 4655996), (4516, 4603415), (5155, 4032788), (5645, 3682732), (8930, 2327998), (10310, 2016394), (11290, 1841366), (17860, 1163999), (19589, 1061260), (20620, 1008197), (21451, 969140), (22580, 920683), (39178, 530630), (42902, 484570), (48457, 429020), (53063, 391780), (78356, 265315), (85804, 242285), (96914, 214510), (97945, 212252), (106126, 195890), (107255, 193828)]