396050

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^2$

素因数の和:190

約数の個数: 18

約数和(自身を含む): 745023

約数和(自身を除く): 348973

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 7921, 15842, 39605, 79210, 198025, 396050]

約数ペア:

[(1, 396050), (2, 198025), (5, 79210), (10, 39605), (25, 15842), (50, 7921), (89, 4450), (178, 2225), (445, 890)]