30931660

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19577}}^1$

素因数の和:19665

約数の個数: 24

約数和(自身を含む): 65782080

約数和(自身を除く): 34850420

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 19577, 39154, 78308, 97885, 195770, 391540, 1546583, 3093166, 6186332, 7732915, 15465830, 30931660]

約数ペア:

[(1, 30931660), (2, 15465830), (4, 7732915), (5, 6186332), (10, 3093166), (20, 1546583), (79, 391540), (158, 195770), (316, 97885), (395, 78308), (790, 39154), (1580, 19577)]