28378660

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{7927}}^1$

素因数の和:8115

約数の個数: 24

約数和(自身を含む): 59935680

約数和(自身を除く): 31557020

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 7927, 15854, 31708, 39635, 79270, 158540, 1418933, 2837866, 5675732, 7094665, 14189330, 28378660]

約数ペア:

[(1, 28378660), (2, 14189330), (4, 7094665), (5, 5675732), (10, 2837866), (20, 1418933), (179, 158540), (358, 79270), (716, 39635), (895, 31708), (1790, 15854), (3580, 7927)]