630980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4507}}^1$

素因数の和:4523

約数の個数: 24

約数和(自身を含む): 1514688

約数和(自身を除く): 883708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4507, 9014, 18028, 22535, 31549, 45070, 63098, 90140, 126196, 157745, 315490, 630980]

約数ペア:

[(1, 630980), (2, 315490), (4, 157745), (5, 126196), (7, 90140), (10, 63098), (14, 45070), (20, 31549), (28, 22535), (35, 18028), (70, 9014), (140, 4507)]