639347710

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1\times {\mathrm{1223}}^1$

素因数の和:2148

約数の個数: 32

約数和(自身を含む): 1172014272

約数和(自身を除く): 532666562

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 857, 1223, 1714, 2446, 4285, 6115, 8570, 12230, 52277, 74603, 104554, 149206, 261385, 373015, 522770, 746030, 1048111, 2096222, 5240555, 10481110, 63934771, 127869542, 319673855, 639347710]

約数ペア:

[(1, 639347710), (2, 319673855), (5, 127869542), (10, 63934771), (61, 10481110), (122, 5240555), (305, 2096222), (610, 1048111), (857, 746030), (1223, 522770), (1714, 373015), (2446, 261385), (4285, 149206), (6115, 104554), (8570, 74603), (12230, 52277)]