861873410

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1090979}}^1$

素因数の和:1091065

約数の個数: 16

約数和(自身を含む): 1571011200

約数和(自身を除く): 709137790

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 1090979, 2181958, 5454895, 10909790, 86187341, 172374682, 430936705, 861873410]

約数ペア:

[(1, 861873410), (2, 430936705), (5, 172374682), (10, 86187341), (79, 10909790), (158, 5454895), (395, 2181958), (790, 1090979)]