81659468

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{11821}}^1$

素因数の和:11993

約数の個数: 24

約数和(自身を含む): 156901584

約数和(自身を除く): 75242116

約数列:

[1, 2, 4, 11, 22, 44, 157, 314, 628, 1727, 3454, 6908, 11821, 23642, 47284, 130031, 260062, 520124, 1855897, 3711794, 7423588, 20414867, 40829734, 81659468]

約数ペア:

[(1, 81659468), (2, 40829734), (4, 20414867), (11, 7423588), (22, 3711794), (44, 1855897), (157, 520124), (314, 260062), (628, 130031), (1727, 47284), (3454, 23642), (6908, 11821)]