20698530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{689951}}^1$

素因数の和:689961

約数の個数: 16

約数和(自身を含む): 49676544

約数和(自身を除く): 28978014

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 689951, 1379902, 2069853, 3449755, 4139706, 6899510, 10349265, 20698530]

約数ペア:

[(1, 20698530), (2, 10349265), (3, 6899510), (5, 4139706), (6, 3449755), (10, 2069853), (15, 1379902), (30, 689951)]