16809620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{10639}}^1$

素因数の和:10727

約数の個数: 24

約数和(自身を含む): 35750400

約数和(自身を除く): 18940780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 10639, 21278, 42556, 53195, 106390, 212780, 840481, 1680962, 3361924, 4202405, 8404810, 16809620]

約数ペア:

[(1, 16809620), (2, 8404810), (4, 4202405), (5, 3361924), (10, 1680962), (20, 840481), (79, 212780), (158, 106390), (316, 53195), (395, 42556), (790, 21278), (1580, 10639)]