198680420

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{119687}}^1$

素因数の和:119779

約数の個数: 24

約数和(自身を含む): 422259264

約数和(自身を除く): 223578844

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 119687, 239374, 478748, 598435, 1196870, 2393740, 9934021, 19868042, 39736084, 49670105, 99340210, 198680420]

約数ペア:

[(1, 198680420), (2, 99340210), (4, 49670105), (5, 39736084), (10, 19868042), (20, 9934021), (83, 2393740), (166, 1196870), (332, 598435), (415, 478748), (830, 239374), (1660, 119687)]