20812340

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9209}}^1$

素因数の和:9331

約数の個数: 24

約数和(自身を含む): 44097480

約数和(自身を除く): 23285140

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9209, 18418, 36836, 46045, 92090, 184180, 1040617, 2081234, 4162468, 5203085, 10406170, 20812340]

約数ペア:

[(1, 20812340), (2, 10406170), (4, 5203085), (5, 4162468), (10, 2081234), (20, 1040617), (113, 184180), (226, 92090), (452, 46045), (565, 36836), (1130, 18418), (2260, 9209)]