26538640

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1667}}^1$

素因数の和:1879

約数の個数: 40

約数和(自身を含む): 62049600

約数和(自身を除く): 35510960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1667, 1990, 3184, 3334, 3980, 6668, 7960, 8335, 13336, 15920, 16670, 26672, 33340, 66680, 133360, 331733, 663466, 1326932, 1658665, 2653864, 3317330, 5307728, 6634660, 13269320, 26538640]

約数ペア:

[(1, 26538640), (2, 13269320), (4, 6634660), (5, 5307728), (8, 3317330), (10, 2653864), (16, 1658665), (20, 1326932), (40, 663466), (80, 331733), (199, 133360), (398, 66680), (796, 33340), (995, 26672), (1592, 16670), (1667, 15920), (1990, 13336), (3184, 8335), (3334, 7960), (3980, 6668)]