12540890

素因数分解:

$2^1\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1789}}^1$

素因数の和:2497

約数の個数: 16

約数和(自身を含む): 22618440

約数和(自身を除く): 10077550

約数列:

[1, 2, 5, 10, 701, 1402, 1789, 3505, 3578, 7010, 8945, 17890, 1254089, 2508178, 6270445, 12540890]

約数ペア:

[(1, 12540890), (2, 6270445), (5, 2508178), (10, 1254089), (701, 17890), (1402, 8945), (1789, 7010), (3505, 3578)]