31103120

素因数分解:

$2^4\times 5^1\times {\mathrm{388789}}^1$

素因数の和:388802

約数の個数: 20

約数和(自身を含む): 72314940

約数和(自身を除く): 41211820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 388789, 777578, 1555156, 1943945, 3110312, 3887890, 6220624, 7775780, 15551560, 31103120]

約数ペア:

[(1, 31103120), (2, 15551560), (4, 7775780), (5, 6220624), (8, 3887890), (10, 3110312), (16, 1943945), (20, 1555156), (40, 777578), (80, 388789)]