256811716

素因数分解:

$2^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{56269}}^1$

素因数の和:56443

約数の個数: 24

約数和(自身を含む): 516783680

約数和(自身を除く): 259971964

約数列:

[1, 2, 4, 7, 14, 28, 163, 326, 652, 1141, 2282, 4564, 56269, 112538, 225076, 393883, 787766, 1575532, 9171847, 18343694, 36687388, 64202929, 128405858, 256811716]

約数ペア:

[(1, 256811716), (2, 128405858), (4, 64202929), (7, 36687388), (14, 18343694), (28, 9171847), (163, 1575532), (326, 787766), (652, 393883), (1141, 225076), (2282, 112538), (4564, 56269)]