20186597980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{997}}^1$

素因数の和:1184

約数の個数: 144

約数和(自身を含む): 46943237376

約数和(自身を除く): 26756639396

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 113, 124, 155, 170, 226, 289, 310, 340, 452, 527, 565, 578, 620, 997, 1054, 1130, 1156, 1445, 1921, 1994, 2108, 2260, 2635, 2890, 3503, 3842, 3988, 4985, 5270, 5780, 7006, 7684, 8959, 9605, 9970, 10540, 14012, 16949, 17515, 17918, 19210, 19940, 30907, 32657, 33898, 35030, 35836, 38420, 44795, 59551, 61814, 65314, 67796, 70060, 84745, 89590, 112661, 119102, 123628, 130628, 154535, 163285, 169490, 179180, 225322, 238204, 288133, 297755, 309070, 326570, 338980, 450644, 525419, 563305, 576266, 595510, 618140, 653140, 1012367, 1050838, 1126610, 1152532, 1191020, 1440665, 1915237, 2024734, 2101676, 2253220, 2627095, 2881330, 3492491, 3830474, 4049468, 5061835, 5254190, 5762660, 6984982, 7660948, 8932123, 9576185, 10123670, 10508380, 13969964, 17462455, 17864246, 19152370, 20247340, 32559029, 34924910, 35728492, 38304740, 44660615, 59372347, 65118058, 69849820, 89321230, 118744694, 130236116, 162795145, 178642460, 237489388, 296861735, 325590290, 593723470, 651180580, 1009329899, 1187446940, 2018659798, 4037319596, 5046649495, 10093298990, 20186597980]

約数ペア:

[(1, 20186597980), (2, 10093298990), (4, 5046649495), (5, 4037319596), (10, 2018659798), (17, 1187446940), (20, 1009329899), (31, 651180580), (34, 593723470), (62, 325590290), (68, 296861735), (85, 237489388), (113, 178642460), (124, 162795145), (155, 130236116), (170, 118744694), (226, 89321230), (289, 69849820), (310, 65118058), (340, 59372347), (452, 44660615), (527, 38304740), (565, 35728492), (578, 34924910), (620, 32559029), (997, 20247340), (1054, 19152370), (1130, 17864246), (1156, 17462455), (1445, 13969964), (1921, 10508380), (1994, 10123670), (2108, 9576185), (2260, 8932123), (2635, 7660948), (2890, 6984982), (3503, 5762660), (3842, 5254190), (3988, 5061835), (4985, 4049468), (5270, 3830474), (5780, 3492491), (7006, 2881330), (7684, 2627095), (8959, 2253220), (9605, 2101676), (9970, 2024734), (10540, 1915237), (14012, 1440665), (16949, 1191020), (17515, 1152532), (17918, 1126610), (19210, 1050838), (19940, 1012367), (30907, 653140), (32657, 618140), (33898, 595510), (35030, 576266), (35836, 563305), (38420, 525419), (44795, 450644), (59551, 338980), (61814, 326570), (65314, 309070), (67796, 297755), (70060, 288133), (84745, 238204), (89590, 225322), (112661, 179180), (119102, 169490), (123628, 163285), (130628, 154535)]