12128875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{8821}}^1$

素因数の和:8847

約数の個数: 16

約数和(自身を含む): 16514784

約数和(自身を除く): 4385909

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 8821, 44105, 97031, 220525, 485155, 1102625, 2425775, 12128875]

約数ペア:

[(1, 12128875), (5, 2425775), (11, 1102625), (25, 485155), (55, 220525), (125, 97031), (275, 44105), (1375, 8821)]