20834420

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4549}}^1$

素因数の和:4787

約数の個数: 24

約数和(自身を含む): 43953000

約数和(自身を除く): 23118580

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4549, 4580, 9098, 18196, 22745, 45490, 90980, 1041721, 2083442, 4166884, 5208605, 10417210, 20834420]

約数ペア:

[(1, 20834420), (2, 10417210), (4, 5208605), (5, 4166884), (10, 2083442), (20, 1041721), (229, 90980), (458, 45490), (916, 22745), (1145, 18196), (2290, 9098), (4549, 4580)]