20468320

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6733}}^1$

素因数の和:6767

約数の個数: 48

約数和(自身を含む): 50909040

約数和(自身を除く): 30440720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6733, 13466, 26932, 33665, 53864, 67330, 107728, 127927, 134660, 215456, 255854, 269320, 511708, 538640, 639635, 1023416, 1077280, 1279270, 2046832, 2558540, 4093664, 5117080, 10234160, 20468320]

約数ペア:

[(1, 20468320), (2, 10234160), (4, 5117080), (5, 4093664), (8, 2558540), (10, 2046832), (16, 1279270), (19, 1077280), (20, 1023416), (32, 639635), (38, 538640), (40, 511708), (76, 269320), (80, 255854), (95, 215456), (152, 134660), (160, 127927), (190, 107728), (304, 67330), (380, 53864), (608, 33665), (760, 26932), (1520, 13466), (3040, 6733)]