20077660

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1013}}^1$

素因数の和:2013

約数の個数: 24

約数和(自身を含む): 42247296

約数和(自身を除く): 22169636

約数列:

[1, 2, 4, 5, 10, 20, 991, 1013, 1982, 2026, 3964, 4052, 4955, 5065, 9910, 10130, 19820, 20260, 1003883, 2007766, 4015532, 5019415, 10038830, 20077660]

約数ペア:

[(1, 20077660), (2, 10038830), (4, 5019415), (5, 4015532), (10, 2007766), (20, 1003883), (991, 20260), (1013, 19820), (1982, 10130), (2026, 9910), (3964, 5065), (4052, 4955)]