215132020

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{106501}}^1$

素因数の和:106611

約数の個数: 24

約数和(自身を含む): 456254568

約数和(自身を除く): 241122548

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 106501, 213002, 426004, 532505, 1065010, 2130020, 10756601, 21513202, 43026404, 53783005, 107566010, 215132020]

約数ペア:

[(1, 215132020), (2, 107566010), (4, 53783005), (5, 43026404), (10, 21513202), (20, 10756601), (101, 2130020), (202, 1065010), (404, 532505), (505, 426004), (1010, 213002), (2020, 106501)]