142406408020

素因数分解:

$2^2\times 5^1\times {\mathrm{7120320401}}^1$

素因数の和:7120320410

約数の個数: 12

約数和(自身を含む): 299053456884

約数和(自身を除く): 156647048864

約数列:

[1, 2, 4, 5, 10, 20, 7120320401, 14240640802, 28481281604, 35601602005, 71203204010, 142406408020]

約数ペア:

[(1, 142406408020), (2, 71203204010), (4, 35601602005), (5, 28481281604), (10, 14240640802), (20, 7120320401)]