72137025

素因数分解:

$3^2\times 5^2\times {\mathrm{320609}}^1$

素因数の和:320625

約数の個数: 18

約数和(自身を含む): 129205830

約数和(自身を除く): 57068805

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 320609, 961827, 1603045, 2885481, 4809135, 8015225, 14427405, 24045675, 72137025]

約数ペア:

[(1, 72137025), (3, 24045675), (5, 14427405), (9, 8015225), (15, 4809135), (25, 2885481), (45, 1603045), (75, 961827), (225, 320609)]