1640890724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{2939}}^1\times {\mathrm{12689}}^1$

素因数の和:15643

約数の個数: 24

約数和(自身を含む): 3133922400

約数和(自身を除く): 1493031676

約数列:

[1, 2, 4, 11, 22, 44, 2939, 5878, 11756, 12689, 25378, 32329, 50756, 64658, 129316, 139579, 279158, 558316, 37292971, 74585942, 149171884, 410222681, 820445362, 1640890724]

約数ペア:

[(1, 1640890724), (2, 820445362), (4, 410222681), (11, 149171884), (22, 74585942), (44, 37292971), (2939, 558316), (5878, 279158), (11756, 139579), (12689, 129316), (25378, 64658), (32329, 50756)]