68438620

素因数分解:

$2^2\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{2111}}^1$

素因数の和:3741

約数の個数: 24

約数和(自身を含む): 143877888

約数和(自身を除く): 75439268

約数列:

[1, 2, 4, 5, 10, 20, 1621, 2111, 3242, 4222, 6484, 8105, 8444, 10555, 16210, 21110, 32420, 42220, 3421931, 6843862, 13687724, 17109655, 34219310, 68438620]

約数ペア:

[(1, 68438620), (2, 34219310), (4, 17109655), (5, 13687724), (10, 6843862), (20, 3421931), (1621, 42220), (2111, 32420), (3242, 21110), (4222, 16210), (6484, 10555), (8105, 8444)]