81299540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{580711}}^1$

素因数の和:580727

約数の個数: 24

約数和(自身を含む): 195119232

約数和(自身を除く): 113819692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 580711, 1161422, 2322844, 2903555, 4064977, 5807110, 8129954, 11614220, 16259908, 20324885, 40649770, 81299540]

約数ペア:

[(1, 81299540), (2, 40649770), (4, 20324885), (5, 16259908), (7, 11614220), (10, 8129954), (14, 5807110), (20, 4064977), (28, 2903555), (35, 2322844), (70, 1161422), (140, 580711)]