12998980

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{3631}}^1$

素因数の和:3819

約数の個数: 24

約数和(自身を含む): 27457920

約数和(自身を除く): 14458940

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 3631, 7262, 14524, 18155, 36310, 72620, 649949, 1299898, 2599796, 3249745, 6499490, 12998980]

約数ペア:

[(1, 12998980), (2, 6499490), (4, 3249745), (5, 2599796), (10, 1299898), (20, 649949), (179, 72620), (358, 36310), (716, 18155), (895, 14524), (1790, 7262), (3580, 3631)]