2017742420

素因数分解:

$2^2\times 5^1\times {\mathrm{6991}}^1\times {\mathrm{14431}}^1$

素因数の和:21431

約数の個数: 24

約数和(自身を含む): 4238158848

約数和(自身を除く): 2220416428

約数列:

[1, 2, 4, 5, 10, 20, 6991, 13982, 14431, 27964, 28862, 34955, 57724, 69910, 72155, 139820, 144310, 288620, 100887121, 201774242, 403548484, 504435605, 1008871210, 2017742420]

約数ペア:

[(1, 2017742420), (2, 1008871210), (4, 504435605), (5, 403548484), (10, 201774242), (20, 100887121), (6991, 288620), (13982, 144310), (14431, 139820), (27964, 72155), (28862, 69910), (34955, 57724)]