20698770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{689959}}^1$

素因数の和:689969

約数の個数: 16

約数和(自身を含む): 49677120

約数和(自身を除く): 28978350

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 689959, 1379918, 2069877, 3449795, 4139754, 6899590, 10349385, 20698770]

約数ペア:

[(1, 20698770), (2, 10349385), (3, 6899590), (5, 4139754), (6, 3449795), (10, 2069877), (15, 1379918), (30, 689959)]