15515620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{7681}}^1$

素因数の和:7791

約数の個数: 24

約数和(自身を含む): 32909688

約数和(自身を除く): 17394068

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 7681, 15362, 30724, 38405, 76810, 153620, 775781, 1551562, 3103124, 3878905, 7757810, 15515620]

約数ペア:

[(1, 15515620), (2, 7757810), (4, 3878905), (5, 3103124), (10, 1551562), (20, 775781), (101, 153620), (202, 76810), (404, 38405), (505, 30724), (1010, 15362), (2020, 7681)]