12909880

素因数分解:

$2^3\times 5^1\times {\mathrm{322747}}^1$

素因数の和:322758

約数の個数: 16

約数和(自身を含む): 29047320

約数和(自身を除く): 16137440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 322747, 645494, 1290988, 1613735, 2581976, 3227470, 6454940, 12909880]

約数ペア:

[(1, 12909880), (2, 6454940), (4, 3227470), (5, 2581976), (8, 1613735), (10, 1290988), (20, 645494), (40, 322747)]