212078575

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{223}}^1\times {\mathrm{349}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 267344000

約数和(自身を除く): 55265425

約数列:

[1, 5, 25, 109, 223, 349, 545, 1115, 1745, 2725, 5575, 8725, 24307, 38041, 77827, 121535, 190205, 389135, 607675, 951025, 1945675, 8483143, 42415715, 212078575]

約数ペア:

[(1, 212078575), (5, 42415715), (25, 8483143), (109, 1945675), (223, 951025), (349, 607675), (545, 389135), (1115, 190205), (1745, 121535), (2725, 77827), (5575, 38041), (8725, 24307)]