72021080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{17827}}^1$

素因数の和:17939

約数の個数: 32

約数和(自身を含む): 163661040

約数和(自身を除く): 91639960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 17827, 35654, 71308, 89135, 142616, 178270, 356540, 713080, 1800527, 3601054, 7202108, 9002635, 14404216, 18005270, 36010540, 72021080]

約数ペア:

[(1, 72021080), (2, 36010540), (4, 18005270), (5, 14404216), (8, 9002635), (10, 7202108), (20, 3601054), (40, 1800527), (101, 713080), (202, 356540), (404, 178270), (505, 142616), (808, 89135), (1010, 71308), (2020, 35654), (4040, 17827)]