84800140

素因数分解:

$2^2\times 5^1\times {\mathrm{4240007}}^1$

素因数の和:4240016

約数の個数: 12

約数和(自身を含む): 178080336

約数和(自身を除く): 93280196

約数列:

[1, 2, 4, 5, 10, 20, 4240007, 8480014, 16960028, 21200035, 42400070, 84800140]

約数ペア:

[(1, 84800140), (2, 42400070), (4, 21200035), (5, 16960028), (10, 8480014), (20, 4240007)]