15968025

素因数分解:

$3^2\times 5^2\times {\mathrm{70969}}^1$

素因数の和:70985

約数の個数: 18

約数和(自身を含む): 28600910

約数和(自身を除く): 12632885

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 70969, 212907, 354845, 638721, 1064535, 1774225, 3193605, 5322675, 15968025]

約数ペア:

[(1, 15968025), (3, 5322675), (5, 3193605), (9, 1774225), (15, 1064535), (25, 638721), (45, 354845), (75, 212907), (225, 70969)]