64393580

素因数分解:

$2^2\times 5^1\times {\mathrm{1319}}^1\times {\mathrm{2441}}^1$

素因数の和:3769

約数の個数: 24

約数和(自身を含む): 135384480

約数和(自身を除く): 70990900

約数列:

[1, 2, 4, 5, 10, 20, 1319, 2441, 2638, 4882, 5276, 6595, 9764, 12205, 13190, 24410, 26380, 48820, 3219679, 6439358, 12878716, 16098395, 32196790, 64393580]

約数ペア:

[(1, 64393580), (2, 32196790), (4, 16098395), (5, 12878716), (10, 6439358), (20, 3219679), (1319, 48820), (2441, 26380), (2638, 24410), (4882, 13190), (5276, 12205), (6595, 9764)]