20778888564

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1754381}}^1$

素因数の和:1754445

約数の個数: 72

約数和(自身を含む): 61305124608

約数和(自身を除く): 40526236044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 47, 63, 84, 94, 126, 141, 188, 252, 282, 329, 423, 564, 658, 846, 987, 1316, 1692, 1974, 2961, 3948, 5922, 11844, 1754381, 3508762, 5263143, 7017524, 10526286, 12280667, 15789429, 21052572, 24561334, 31578858, 36842001, 49122668, 63157716, 73684002, 82455907, 110526003, 147368004, 164911814, 221052006, 247367721, 329823628, 442104012, 494735442, 577191349, 742103163, 989470884, 1154382698, 1484206326, 1731574047, 2308765396, 2968412652, 3463148094, 5194722141, 6926296188, 10389444282, 20778888564]

約数ペア:

[(1, 20778888564), (2, 10389444282), (3, 6926296188), (4, 5194722141), (6, 3463148094), (7, 2968412652), (9, 2308765396), (12, 1731574047), (14, 1484206326), (18, 1154382698), (21, 989470884), (28, 742103163), (36, 577191349), (42, 494735442), (47, 442104012), (63, 329823628), (84, 247367721), (94, 221052006), (126, 164911814), (141, 147368004), (188, 110526003), (252, 82455907), (282, 73684002), (329, 63157716), (423, 49122668), (564, 36842001), (658, 31578858), (846, 24561334), (987, 21052572), (1316, 15789429), (1692, 12280667), (1974, 10526286), (2961, 7017524), (3948, 5263143), (5922, 3508762), (11844, 1754381)]