51191540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{82567}}^1$

素因数の和:82607

約数の個数: 24

約数和(自身を含む): 110971392

約数和(自身を除く): 59779852

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 82567, 165134, 330268, 412835, 825670, 1651340, 2559577, 5119154, 10238308, 12797885, 25595770, 51191540]

約数ペア:

[(1, 51191540), (2, 25595770), (4, 12797885), (5, 10238308), (10, 5119154), (20, 2559577), (31, 1651340), (62, 825670), (124, 412835), (155, 330268), (310, 165134), (620, 82567)]