661900540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2011}}^1\times {\mathrm{2351}}^1$

素因数の和:4378

約数の個数: 48

約数和(自身を含む): 1590027264

約数和(自身を除く): 928126724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2011, 2351, 4022, 4702, 8044, 9404, 10055, 11755, 14077, 16457, 20110, 23510, 28154, 32914, 40220, 47020, 56308, 65828, 70385, 82285, 140770, 164570, 281540, 329140, 4727861, 9455722, 18911444, 23639305, 33095027, 47278610, 66190054, 94557220, 132380108, 165475135, 330950270, 661900540]

約数ペア:

[(1, 661900540), (2, 330950270), (4, 165475135), (5, 132380108), (7, 94557220), (10, 66190054), (14, 47278610), (20, 33095027), (28, 23639305), (35, 18911444), (70, 9455722), (140, 4727861), (2011, 329140), (2351, 281540), (4022, 164570), (4702, 140770), (8044, 82285), (9404, 70385), (10055, 65828), (11755, 56308), (14077, 47020), (16457, 40220), (20110, 32914), (23510, 28154)]