129406564

素因数分解:

$2^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{18413}}^1$

素因数の和:18675

約数の個数: 24

約数和(自身を含む): 259858368

約数和(自身を除く): 130451804

約数列:

[1, 2, 4, 7, 14, 28, 251, 502, 1004, 1757, 3514, 7028, 18413, 36826, 73652, 128891, 257782, 515564, 4621663, 9243326, 18486652, 32351641, 64703282, 129406564]

約数ペア:

[(1, 129406564), (2, 64703282), (4, 32351641), (7, 18486652), (14, 9243326), (28, 4621663), (251, 515564), (502, 257782), (1004, 128891), (1757, 73652), (3514, 36826), (7028, 18413)]