20523770

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15667}}^1$

素因数の和:15805

約数の個数: 16

約数和(自身を含む): 37227168

約数和(自身を除く): 16703398

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 15667, 31334, 78335, 156670, 2052377, 4104754, 10261885, 20523770]

約数ペア:

[(1, 20523770), (2, 10261885), (5, 4104754), (10, 2052377), (131, 156670), (262, 78335), (655, 31334), (1310, 15667)]