320460490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{654001}}^1$

素因数の和:654022

約数の個数: 24

約数和(自身を含む): 671006052

約数和(自身を除く): 350545562

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 654001, 1308002, 3270005, 4578007, 6540010, 9156014, 22890035, 32046049, 45780070, 64092098, 160230245, 320460490]

約数ペア:

[(1, 320460490), (2, 160230245), (5, 64092098), (7, 45780070), (10, 32046049), (14, 22890035), (35, 9156014), (49, 6540010), (70, 4578007), (98, 3270005), (245, 1308002), (490, 654001)]