155220525

素因数分解:

$3^2\times 5^2\times {\mathrm{689869}}^1$

素因数の和:689885

約数の個数: 18

約数和(自身を含む): 278017610

約数和(自身を除く): 122797085

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 689869, 2069607, 3449345, 6208821, 10348035, 17246725, 31044105, 51740175, 155220525]

約数ペア:

[(1, 155220525), (3, 51740175), (5, 31044105), (9, 17246725), (15, 10348035), (25, 6208821), (45, 3449345), (75, 2069607), (225, 689869)]