16041980

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{4481}}^1$

素因数の和:4669

約数の個数: 24

約数和(自身を含む): 33883920

約数和(自身を除く): 17841940

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 4481, 8962, 17924, 22405, 44810, 89620, 802099, 1604198, 3208396, 4010495, 8020990, 16041980]

約数ペア:

[(1, 16041980), (2, 8020990), (4, 4010495), (5, 3208396), (10, 1604198), (20, 802099), (179, 89620), (358, 44810), (716, 22405), (895, 17924), (1790, 8962), (3580, 4481)]