198965240

素因数分解:

$2^3\times 5^1\times {\mathrm{4974131}}^1$

素因数の和:4974142

約数の個数: 16

約数和(自身を含む): 447671880

約数和(自身を除く): 248706640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4974131, 9948262, 19896524, 24870655, 39793048, 49741310, 99482620, 198965240]

約数ペア:

[(1, 198965240), (2, 99482620), (4, 49741310), (5, 39793048), (8, 24870655), (10, 19896524), (20, 9948262), (40, 4974131)]