20553320

素因数分解:

$2^3\times 5^1\times {\mathrm{701}}^1\times {\mathrm{733}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 46374120

約数和(自身を除く): 25820800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 701, 733, 1402, 1466, 2804, 2932, 3505, 3665, 5608, 5864, 7010, 7330, 14020, 14660, 28040, 29320, 513833, 1027666, 2055332, 2569165, 4110664, 5138330, 10276660, 20553320]

約数ペア:

[(1, 20553320), (2, 10276660), (4, 5138330), (5, 4110664), (8, 2569165), (10, 2055332), (20, 1027666), (40, 513833), (701, 29320), (733, 28040), (1402, 14660), (1466, 14020), (2804, 7330), (2932, 7010), (3505, 5864), (3665, 5608)]