64405990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{3271}}^1$

素因数の和:3468

約数の個数: 32

約数和(自身を含む): 127215360

約数和(自身を除く): 62809370

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 179, 358, 895, 1790, 1969, 3271, 3938, 6542, 9845, 16355, 19690, 32710, 35981, 71962, 179905, 359810, 585509, 1171018, 2927545, 5855090, 6440599, 12881198, 32202995, 64405990]

約数ペア:

[(1, 64405990), (2, 32202995), (5, 12881198), (10, 6440599), (11, 5855090), (22, 2927545), (55, 1171018), (110, 585509), (179, 359810), (358, 179905), (895, 71962), (1790, 35981), (1969, 32710), (3271, 19690), (3938, 16355), (6542, 9845)]