128340875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{78979}}^1$

素因数の和:79007

約数の個数: 16

約数和(自身を含む): 172492320

約数和(自身を除く): 44151445

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 78979, 394895, 1026727, 1974475, 5133635, 9872375, 25668175, 128340875]

約数ペア:

[(1, 128340875), (5, 25668175), (13, 9872375), (25, 5133635), (65, 1974475), (125, 1026727), (325, 394895), (1625, 78979)]