640663342

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{3221}}^1\times {\mathrm{9041}}^1$

素因数の和:12275

約数の個数: 16

約数和(自身を含む): 1048799664

約数和(自身を除く): 408136322

約数列:

[1, 2, 11, 22, 3221, 6442, 9041, 18082, 35431, 70862, 99451, 198902, 29121061, 58242122, 320331671, 640663342]

約数ペア:

[(1, 640663342), (2, 320331671), (11, 58242122), (22, 29121061), (3221, 198902), (6442, 99451), (9041, 70862), (18082, 35431)]