248971540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401567}}^1$

素因数の和:401607

約数の個数: 24

約数和(自身を含む): 539707392

約数和(自身を除く): 290735852

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 401567, 803134, 1606268, 2007835, 4015670, 8031340, 12448577, 24897154, 49794308, 62242885, 124485770, 248971540]

約数ペア:

[(1, 248971540), (2, 124485770), (4, 62242885), (5, 49794308), (10, 24897154), (20, 12448577), (31, 8031340), (62, 4015670), (124, 2007835), (155, 1606268), (310, 803134), (620, 401567)]