40400

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1$

素因数の和:119

約数の個数: 30

約数和(自身を含む): 98022

約数和(自身を除く): 57622

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 505, 808, 1010, 1616, 2020, 2525, 4040, 5050, 8080, 10100, 20200, 40400]

約数ペア:

[(1, 40400), (2, 20200), (4, 10100), (5, 8080), (8, 5050), (10, 4040), (16, 2525), (20, 2020), (25, 1616), (40, 1010), (50, 808), (80, 505), (100, 404), (101, 400), (200, 202)]