20191205

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{827}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 25634880

約数和(自身を除く): 5443675

約数列:

[1, 5, 19, 95, 257, 827, 1285, 4135, 4883, 15713, 24415, 78565, 212539, 1062695, 4038241, 20191205]

約数ペア:

[(1, 20191205), (5, 4038241), (19, 1062695), (95, 212539), (257, 78565), (827, 24415), (1285, 15713), (4135, 4883)]