64381425

素因数分解:

$3^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{2039}}^1$

素因数の和:2473

約数の個数: 24

約数和(自身を含む): 106749120

約数和(自身を除く): 42367695

約数列:

[1, 3, 5, 15, 25, 75, 421, 1263, 2039, 2105, 6117, 6315, 10195, 10525, 30585, 31575, 50975, 152925, 858419, 2575257, 4292095, 12876285, 21460475, 64381425]

約数ペア:

[(1, 64381425), (3, 21460475), (5, 12876285), (15, 4292095), (25, 2575257), (75, 858419), (421, 152925), (1263, 50975), (2039, 31575), (2105, 30585), (6117, 10525), (6315, 10195)]