409780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2927}}^1$

素因数の和:2943

約数の個数: 24

約数和(自身を含む): 983808

約数和(自身を除く): 574028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2927, 5854, 11708, 14635, 20489, 29270, 40978, 58540, 81956, 102445, 204890, 409780]

約数ペア:

[(1, 409780), (2, 204890), (4, 102445), (5, 81956), (7, 58540), (10, 40978), (14, 29270), (20, 20489), (28, 14635), (35, 11708), (70, 5854), (140, 2927)]