12749204540

素因数分解:

$2^2\times 5^1\times {\mathrm{1627}}^1\times {\mathrm{391801}}^1$

素因数の和:393437

約数の個数: 24

約数和(自身を含む): 26789853552

約数和(自身を除く): 14040649012

約数列:

[1, 2, 4, 5, 10, 20, 1627, 3254, 6508, 8135, 16270, 32540, 391801, 783602, 1567204, 1959005, 3918010, 7836020, 637460227, 1274920454, 2549840908, 3187301135, 6374602270, 12749204540]

約数ペア:

[(1, 12749204540), (2, 6374602270), (4, 3187301135), (5, 2549840908), (10, 1274920454), (20, 637460227), (1627, 7836020), (3254, 3918010), (6508, 1959005), (8135, 1567204), (16270, 783602), (32540, 391801)]