28786040

素因数分解:

$2^3\times 5^1\times {\mathrm{677}}^1\times {\mathrm{1063}}^1$

素因数の和:1751

約数の個数: 32

約数和(自身を含む): 64925280

約数和(自身を除く): 36139240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 677, 1063, 1354, 2126, 2708, 3385, 4252, 5315, 5416, 6770, 8504, 10630, 13540, 21260, 27080, 42520, 719651, 1439302, 2878604, 3598255, 5757208, 7196510, 14393020, 28786040]

約数ペア:

[(1, 28786040), (2, 14393020), (4, 7196510), (5, 5757208), (8, 3598255), (10, 2878604), (20, 1439302), (40, 719651), (677, 42520), (1063, 27080), (1354, 21260), (2126, 13540), (2708, 10630), (3385, 8504), (4252, 6770), (5315, 5416)]