20808112048

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1\times {\mathrm{3319}}^1$

素因数の和:3890

約数の個数: 80

約数和(自身を含む): 43572211200

約数和(自身を除く): 22764099152

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 503, 656, 779, 1006, 1558, 2012, 3116, 3319, 4024, 6232, 6638, 8048, 9557, 12464, 13276, 19114, 20623, 26552, 38228, 41246, 53104, 63061, 76456, 82492, 126122, 136079, 152912, 164984, 252244, 272158, 329968, 391837, 504488, 544316, 783674, 1008976, 1088632, 1567348, 1669457, 2177264, 2585501, 3134696, 3338914, 5171002, 6269392, 6677828, 10342004, 13355656, 20684008, 26711312, 31719683, 41368016, 63439366, 68447737, 126878732, 136895474, 253757464, 273790948, 507514928, 547581896, 1095163792, 1300507003, 2601014006, 5202028012, 10404056024, 20808112048]

約数ペア:

[(1, 20808112048), (2, 10404056024), (4, 5202028012), (8, 2601014006), (16, 1300507003), (19, 1095163792), (38, 547581896), (41, 507514928), (76, 273790948), (82, 253757464), (152, 136895474), (164, 126878732), (304, 68447737), (328, 63439366), (503, 41368016), (656, 31719683), (779, 26711312), (1006, 20684008), (1558, 13355656), (2012, 10342004), (3116, 6677828), (3319, 6269392), (4024, 5171002), (6232, 3338914), (6638, 3134696), (8048, 2585501), (9557, 2177264), (12464, 1669457), (13276, 1567348), (19114, 1088632), (20623, 1008976), (26552, 783674), (38228, 544316), (41246, 504488), (53104, 391837), (63061, 329968), (76456, 272158), (82492, 252244), (126122, 164984), (136079, 152912)]