64820025

素因数分解:

$3^2\times 5^2\times {\mathrm{288089}}^1$

素因数の和:288105

約数の個数: 18

約数和(自身を含む): 116100270

約数和(自身を除く): 51280245

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 288089, 864267, 1440445, 2592801, 4321335, 7202225, 12964005, 21606675, 64820025]

約数ペア:

[(1, 64820025), (3, 21606675), (5, 12964005), (9, 7202225), (15, 4321335), (25, 2592801), (45, 1440445), (75, 864267), (225, 288089)]