28221260

素因数分解:

$2^2\times 5^1\times {\mathrm{1093}}^1\times {\mathrm{1291}}^1$

素因数の和:2393

約数の個数: 24

約数和(自身を含む): 59364816

約数和(自身を除く): 31143556

約数列:

[1, 2, 4, 5, 10, 20, 1093, 1291, 2186, 2582, 4372, 5164, 5465, 6455, 10930, 12910, 21860, 25820, 1411063, 2822126, 5644252, 7055315, 14110630, 28221260]

約数ペア:

[(1, 28221260), (2, 14110630), (4, 7055315), (5, 5644252), (10, 2822126), (20, 1411063), (1093, 25820), (1291, 21860), (2186, 12910), (2582, 10930), (4372, 6455), (5164, 5465)]