20781722088

素因数分解:

$2^3\times 3^2\times {\mathrm{139}}^1\times {\mathrm{857}}^1\times {\mathrm{2423}}^1$

素因数の和:3431

約数の個数: 96

約数和(自身を含む): 56778321600

約数和(自身を除く): 35996599512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 139, 278, 417, 556, 834, 857, 1112, 1251, 1668, 1714, 2423, 2502, 2571, 3336, 3428, 4846, 5004, 5142, 6856, 7269, 7713, 9692, 10008, 10284, 14538, 15426, 19384, 20568, 21807, 29076, 30852, 43614, 58152, 61704, 87228, 119123, 174456, 238246, 336797, 357369, 476492, 673594, 714738, 952984, 1010391, 1072107, 1347188, 1429476, 2020782, 2076511, 2144214, 2694376, 2858952, 3031173, 4041564, 4153022, 4288428, 6062346, 6229533, 8083128, 8306044, 8576856, 12124692, 12459066, 16612088, 18688599, 24249384, 24918132, 37377198, 49836264, 74754396, 149508792, 288635029, 577270058, 865905087, 1154540116, 1731810174, 2309080232, 2597715261, 3463620348, 5195430522, 6927240696, 10390861044, 20781722088]

約数ペア:

[(1, 20781722088), (2, 10390861044), (3, 6927240696), (4, 5195430522), (6, 3463620348), (8, 2597715261), (9, 2309080232), (12, 1731810174), (18, 1154540116), (24, 865905087), (36, 577270058), (72, 288635029), (139, 149508792), (278, 74754396), (417, 49836264), (556, 37377198), (834, 24918132), (857, 24249384), (1112, 18688599), (1251, 16612088), (1668, 12459066), (1714, 12124692), (2423, 8576856), (2502, 8306044), (2571, 8083128), (3336, 6229533), (3428, 6062346), (4846, 4288428), (5004, 4153022), (5142, 4041564), (6856, 3031173), (7269, 2858952), (7713, 2694376), (9692, 2144214), (10008, 2076511), (10284, 2020782), (14538, 1429476), (15426, 1347188), (19384, 1072107), (20568, 1010391), (21807, 952984), (29076, 714738), (30852, 673594), (43614, 476492), (58152, 357369), (61704, 336797), (87228, 238246), (119123, 174456)]