20847740

素因数分解:

$2^2\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1487}}^1$

素因数の和:2197

約数の個数: 24

約数和(自身を含む): 43872192

約数和(自身を除く): 23024452

約数列:

[1, 2, 4, 5, 10, 20, 701, 1402, 1487, 2804, 2974, 3505, 5948, 7010, 7435, 14020, 14870, 29740, 1042387, 2084774, 4169548, 5211935, 10423870, 20847740]

約数ペア:

[(1, 20847740), (2, 10423870), (4, 5211935), (5, 4169548), (10, 2084774), (20, 1042387), (701, 29740), (1402, 14870), (1487, 14020), (2804, 7435), (2974, 7010), (3505, 5948)]