18038260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12703}}^1$

素因数の和:12783

約数の個数: 24

約数和(自身を含む): 38416896

約数和(自身を除く): 20378636

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 12703, 25406, 50812, 63515, 127030, 254060, 901913, 1803826, 3607652, 4509565, 9019130, 18038260]

約数ペア:

[(1, 18038260), (2, 9019130), (4, 4509565), (5, 3607652), (10, 1803826), (20, 901913), (71, 254060), (142, 127030), (284, 63515), (355, 50812), (710, 25406), (1420, 12703)]