2019957580

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{999979}}^1$

素因数の和:1000089

約数の個数: 24

約数和(自身を含む): 4283914320

約数和(自身を除く): 2263956740

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 999979, 1999958, 3999916, 4999895, 9999790, 19999580, 100997879, 201995758, 403991516, 504989395, 1009978790, 2019957580]

約数ペア:

[(1, 2019957580), (2, 1009978790), (4, 504989395), (5, 403991516), (10, 201995758), (20, 100997879), (101, 19999580), (202, 9999790), (404, 4999895), (505, 3999916), (1010, 1999958), (2020, 999979)]