639485

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{151}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 970368

約数和(自身を除く): 330883

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 151, 385, 605, 755, 847, 1057, 1661, 4235, 5285, 8305, 11627, 18271, 58135, 91355, 127897, 639485]

約数ペア:

[(1, 639485), (5, 127897), (7, 91355), (11, 58135), (35, 18271), (55, 11627), (77, 8305), (121, 5285), (151, 4235), (385, 1661), (605, 1057), (755, 847)]