20015580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{383}}^1$

素因数の和:475

約数の個数: 96

約数和(自身を含む): 61415424

約数和(自身を除く): 41399844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 67, 78, 130, 134, 156, 195, 201, 260, 268, 335, 383, 390, 402, 670, 766, 780, 804, 871, 1005, 1149, 1340, 1532, 1742, 1915, 2010, 2298, 2613, 3484, 3830, 4020, 4355, 4596, 4979, 5226, 5745, 7660, 8710, 9958, 10452, 11490, 13065, 14937, 17420, 19916, 22980, 24895, 25661, 26130, 29874, 49790, 51322, 52260, 59748, 74685, 76983, 99580, 102644, 128305, 149370, 153966, 256610, 298740, 307932, 333593, 384915, 513220, 667186, 769830, 1000779, 1334372, 1539660, 1667965, 2001558, 3335930, 4003116, 5003895, 6671860, 10007790, 20015580]

約数ペア:

[(1, 20015580), (2, 10007790), (3, 6671860), (4, 5003895), (5, 4003116), (6, 3335930), (10, 2001558), (12, 1667965), (13, 1539660), (15, 1334372), (20, 1000779), (26, 769830), (30, 667186), (39, 513220), (52, 384915), (60, 333593), (65, 307932), (67, 298740), (78, 256610), (130, 153966), (134, 149370), (156, 128305), (195, 102644), (201, 99580), (260, 76983), (268, 74685), (335, 59748), (383, 52260), (390, 51322), (402, 49790), (670, 29874), (766, 26130), (780, 25661), (804, 24895), (871, 22980), (1005, 19916), (1149, 17420), (1340, 14937), (1532, 13065), (1742, 11490), (1915, 10452), (2010, 9958), (2298, 8710), (2613, 7660), (3484, 5745), (3830, 5226), (4020, 4979), (4355, 4596)]