201917564

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{641}}^1\times {\mathrm{1291}}^1$

素因数の和:1997

約数の個数: 24

約数和(自身を含む): 359987376

約数和(自身を除く): 158069812

約数列:

[1, 2, 4, 61, 122, 244, 641, 1282, 1291, 2564, 2582, 5164, 39101, 78202, 78751, 156404, 157502, 315004, 827531, 1655062, 3310124, 50479391, 100958782, 201917564]

約数ペア:

[(1, 201917564), (2, 100958782), (4, 50479391), (61, 3310124), (122, 1655062), (244, 827531), (641, 315004), (1282, 157502), (1291, 156404), (2564, 78751), (2582, 78202), (5164, 39101)]