207971660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{799891}}^1$

素因数の和:799913

約数の個数: 24

約数和(自身を含む): 470336496

約数和(自身を除く): 262364836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 799891, 1599782, 3199564, 3999455, 7998910, 10398583, 15997820, 20797166, 41594332, 51992915, 103985830, 207971660]

約数ペア:

[(1, 207971660), (2, 103985830), (4, 51992915), (5, 41594332), (10, 20797166), (13, 15997820), (20, 10398583), (26, 7998910), (52, 3999455), (65, 3199564), (130, 1599782), (260, 799891)]