85816820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{99787}}^1$

素因数の和:99839

約数の個数: 24

約数和(自身を含む): 184408224

約数和(自身を除く): 98591404

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 99787, 199574, 399148, 498935, 997870, 1995740, 4290841, 8581682, 17163364, 21454205, 42908410, 85816820]

約数ペア:

[(1, 85816820), (2, 42908410), (4, 21454205), (5, 17163364), (10, 8581682), (20, 4290841), (43, 1995740), (86, 997870), (172, 498935), (215, 399148), (430, 199574), (860, 99787)]