640679806

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{108553}}^1$

素因数の和:108795

約数の個数: 16

約数和(自身を含む): 1039513104

約数和(自身を除く): 398833298

約数列:

[1, 2, 13, 26, 227, 454, 2951, 5902, 108553, 217106, 1411189, 2822378, 24641531, 49283062, 320339903, 640679806]

約数ペア:

[(1, 640679806), (2, 320339903), (13, 49283062), (26, 24641531), (227, 2822378), (454, 1411189), (2951, 217106), (5902, 108553)]