18339340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10303}}^1$

素因数の和:10401

約数の個数: 24

約数和(自身を含む): 38949120

約数和(自身を除く): 20609780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10303, 20606, 41212, 51515, 103030, 206060, 916967, 1833934, 3667868, 4584835, 9169670, 18339340]

約数ペア:

[(1, 18339340), (2, 9169670), (4, 4584835), (5, 3667868), (10, 1833934), (20, 916967), (89, 206060), (178, 103030), (356, 51515), (445, 41212), (890, 20606), (1780, 10303)]