4998380

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{509}}^1$

素因数の和:1009

約数の個数: 24

約数和(自身を含む): 10538640

約数和(自身を除く): 5540260

約数列:

[1, 2, 4, 5, 10, 20, 491, 509, 982, 1018, 1964, 2036, 2455, 2545, 4910, 5090, 9820, 10180, 249919, 499838, 999676, 1249595, 2499190, 4998380]

約数ペア:

[(1, 4998380), (2, 2499190), (4, 1249595), (5, 999676), (10, 499838), (20, 249919), (491, 10180), (509, 9820), (982, 5090), (1018, 4910), (1964, 2545), (2036, 2455)]