211231640

素因数分解:

$2^3\times 5^1\times {\mathrm{5280791}}^1$

素因数の和:5280802

約数の個数: 16

約数和(自身を含む): 475271280

約数和(自身を除く): 264039640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5280791, 10561582, 21123164, 26403955, 42246328, 52807910, 105615820, 211231640]

約数ペア:

[(1, 211231640), (2, 105615820), (4, 52807910), (5, 42246328), (8, 26403955), (10, 21123164), (20, 10561582), (40, 5280791)]