1565270020

素因数分解:

$2^2\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{48281}}^1$

素因数の和:49911

約数の個数: 24

約数和(自身を含む): 3289162968

約数和(自身を除く): 1723892948

約数列:

[1, 2, 4, 5, 10, 20, 1621, 3242, 6484, 8105, 16210, 32420, 48281, 96562, 193124, 241405, 482810, 965620, 78263501, 156527002, 313054004, 391317505, 782635010, 1565270020]

約数ペア:

[(1, 1565270020), (2, 782635010), (4, 391317505), (5, 313054004), (10, 156527002), (20, 78263501), (1621, 965620), (3242, 482810), (6484, 241405), (8105, 193124), (16210, 96562), (32420, 48281)]