518804540

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{198017}}^1$

素因数の和:198157

約数の個数: 24

約数和(自身を含む): 1097811792

約数和(自身を除く): 579007252

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 198017, 396034, 792068, 990085, 1980170, 3960340, 25940227, 51880454, 103760908, 129701135, 259402270, 518804540]

約数ペア:

[(1, 518804540), (2, 259402270), (4, 129701135), (5, 103760908), (10, 51880454), (20, 25940227), (131, 3960340), (262, 1980170), (524, 990085), (655, 792068), (1310, 396034), (2620, 198017)]