64842020

素因数分解:

$2^2\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{2887}}^1$

素因数の和:4019

約数の個数: 24

約数和(自身を含む): 136336704

約数和(自身を除く): 71494684

約数列:

[1, 2, 4, 5, 10, 20, 1123, 2246, 2887, 4492, 5615, 5774, 11230, 11548, 14435, 22460, 28870, 57740, 3242101, 6484202, 12968404, 16210505, 32421010, 64842020]

約数ペア:

[(1, 64842020), (2, 32421010), (4, 16210505), (5, 12968404), (10, 6484202), (20, 3242101), (1123, 57740), (2246, 28870), (2887, 22460), (4492, 14435), (5615, 11548), (5774, 11230)]