1330481420

素因数分解:

$2^2\times 5^1\times {\mathrm{66524071}}^1$

素因数の和:66524080

約数の個数: 12

約数和(自身を含む): 2794011024

約数和(自身を除く): 1463529604

約数列:

[1, 2, 4, 5, 10, 20, 66524071, 133048142, 266096284, 332620355, 665240710, 1330481420]

約数ペア:

[(1, 1330481420), (2, 665240710), (4, 332620355), (5, 266096284), (10, 133048142), (20, 66524071)]