161242460

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{79823}}^1$

素因数の和:79933

約数の個数: 24

約数和(自身を含む): 341966016

約数和(自身を除く): 180723556

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 79823, 159646, 319292, 399115, 798230, 1596460, 8062123, 16124246, 32248492, 40310615, 80621230, 161242460]

約数ペア:

[(1, 161242460), (2, 80621230), (4, 40310615), (5, 32248492), (10, 16124246), (20, 8062123), (101, 1596460), (202, 798230), (404, 399115), (505, 319292), (1010, 159646), (2020, 79823)]