20188720

素因数分解:

$2^4\times 5^1\times {\mathrm{252359}}^1$

素因数の和:252372

約数の個数: 20

約数和(自身を含む): 46938960

約数和(自身を除く): 26750240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252359, 504718, 1009436, 1261795, 2018872, 2523590, 4037744, 5047180, 10094360, 20188720]

約数ペア:

[(1, 20188720), (2, 10094360), (4, 5047180), (5, 4037744), (8, 2523590), (10, 2018872), (16, 1261795), (20, 1009436), (40, 504718), (80, 252359)]