20165354840

素因数分解:

$2^3\times 5^1\times {\mathrm{1103}}^1\times {\mathrm{457057}}^1$

素因数の和:458171

約数の個数: 32

約数和(自身を含む): 45413282880

約数和(自身を除く): 25247928040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1103, 2206, 4412, 5515, 8824, 11030, 22060, 44120, 457057, 914114, 1828228, 2285285, 3656456, 4570570, 9141140, 18282280, 504133871, 1008267742, 2016535484, 2520669355, 4033070968, 5041338710, 10082677420, 20165354840]

約数ペア:

[(1, 20165354840), (2, 10082677420), (4, 5041338710), (5, 4033070968), (8, 2520669355), (10, 2016535484), (20, 1008267742), (40, 504133871), (1103, 18282280), (2206, 9141140), (4412, 4570570), (5515, 3656456), (8824, 2285285), (11030, 1828228), (22060, 914114), (44120, 457057)]