11821520

素因数分解:

$2^4\times 5^1\times {\mathrm{147769}}^1$

素因数の和:147782

約数の個数: 20

約数和(自身を含む): 27485220

約数和(自身を除く): 15663700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 147769, 295538, 591076, 738845, 1182152, 1477690, 2364304, 2955380, 5910760, 11821520]

約数ペア:

[(1, 11821520), (2, 5910760), (4, 2955380), (5, 2364304), (8, 1477690), (10, 1182152), (16, 738845), (20, 591076), (40, 295538), (80, 147769)]