28177540

素因数分解:

$2^2\times 5^1\times {\mathrm{1093}}^1\times {\mathrm{1289}}^1$

素因数の和:2391

約数の個数: 24

約数和(自身を含む): 59272920

約数和(自身を除く): 31095380

約数列:

[1, 2, 4, 5, 10, 20, 1093, 1289, 2186, 2578, 4372, 5156, 5465, 6445, 10930, 12890, 21860, 25780, 1408877, 2817754, 5635508, 7044385, 14088770, 28177540]

約数ペア:

[(1, 28177540), (2, 14088770), (4, 7044385), (5, 5635508), (10, 2817754), (20, 1408877), (1093, 25780), (1289, 21860), (2186, 12890), (2578, 10930), (4372, 6445), (5156, 5465)]