222720525

素因数分解:

$3^2\times 5^2\times {\mathrm{989869}}^1$

素因数の和:989885

約数の個数: 18

約数和(自身を含む): 398917610

約数和(自身を除く): 176197085

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 989869, 2969607, 4949345, 8908821, 14848035, 24746725, 44544105, 74240175, 222720525]

約数ペア:

[(1, 222720525), (3, 74240175), (5, 44544105), (9, 24746725), (15, 14848035), (25, 8908821), (45, 4949345), (75, 2969607), (225, 989869)]