8118380

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4019}}^1$

素因数の和:4129

約数の個数: 24

約数和(自身を含む): 17221680

約数和(自身を除く): 9103300

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 4019, 8038, 16076, 20095, 40190, 80380, 405919, 811838, 1623676, 2029595, 4059190, 8118380]

約数ペア:

[(1, 8118380), (2, 4059190), (4, 2029595), (5, 1623676), (10, 811838), (20, 405919), (101, 80380), (202, 40190), (404, 20095), (505, 16076), (1010, 8038), (2020, 4019)]