129308020

素因数分解:

$2^2\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{6271}}^1$

素因数の和:7311

約数の個数: 24

約数和(自身を含む): 271853568

約数和(自身を除く): 142545548

約数列:

[1, 2, 4, 5, 10, 20, 1031, 2062, 4124, 5155, 6271, 10310, 12542, 20620, 25084, 31355, 62710, 125420, 6465401, 12930802, 25861604, 32327005, 64654010, 129308020]

約数ペア:

[(1, 129308020), (2, 64654010), (4, 32327005), (5, 25861604), (10, 12930802), (20, 6465401), (1031, 125420), (2062, 62710), (4124, 31355), (5155, 25084), (6271, 20620), (10310, 12542)]