20070408920

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4967923}}^1$

素因数の和:4968035

約数の個数: 32

約数和(自身を含む): 45605542320

約数和(自身を除く): 25535133400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4967923, 9935846, 19871692, 24839615, 39743384, 49679230, 99358460, 198716920, 501760223, 1003520446, 2007040892, 2508801115, 4014081784, 5017602230, 10035204460, 20070408920]

約数ペア:

[(1, 20070408920), (2, 10035204460), (4, 5017602230), (5, 4014081784), (8, 2508801115), (10, 2007040892), (20, 1003520446), (40, 501760223), (101, 198716920), (202, 99358460), (404, 49679230), (505, 39743384), (808, 24839615), (1010, 19871692), (2020, 9935846), (4040, 4967923)]