64008820

素因数分解:

$2^2\times 5^1\times {\mathrm{1481}}^1\times {\mathrm{2161}}^1$

素因数の和:3651

約数の個数: 24

約数和(自身を含む): 134571528

約数和(自身を除く): 70562708

約数列:

[1, 2, 4, 5, 10, 20, 1481, 2161, 2962, 4322, 5924, 7405, 8644, 10805, 14810, 21610, 29620, 43220, 3200441, 6400882, 12801764, 16002205, 32004410, 64008820]

約数ペア:

[(1, 64008820), (2, 32004410), (4, 16002205), (5, 12801764), (10, 6400882), (20, 3200441), (1481, 43220), (2161, 29620), (2962, 21610), (4322, 14810), (5924, 10805), (7405, 8644)]