61978660

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{39227}}^1$

素因数の和:39315

約数の個数: 24

約数和(自身を含む): 131806080

約数和(自身を除く): 69827420

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 39227, 78454, 156908, 196135, 392270, 784540, 3098933, 6197866, 12395732, 15494665, 30989330, 61978660]

約数ペア:

[(1, 61978660), (2, 30989330), (4, 15494665), (5, 12395732), (10, 6197866), (20, 3098933), (79, 784540), (158, 392270), (316, 196135), (395, 156908), (790, 78454), (1580, 39227)]