28663125

素因数分解:

$3^1\times 5^4\times {\mathrm{15287}}^1$

素因数の和:15310

約数の個数: 20

約数和(自身を含む): 47759712

約数和(自身を除く): 19096587

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 15287, 45861, 76435, 229305, 382175, 1146525, 1910875, 5732625, 9554375, 28663125]

約数ペア:

[(1, 28663125), (3, 9554375), (5, 5732625), (15, 1910875), (25, 1146525), (75, 382175), (125, 229305), (375, 76435), (625, 45861), (1875, 15287)]