2678660

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1999}}^1$

素因数の和:2075

約数の個数: 24

約数和(自身を含む): 5712000

約数和(自身を除く): 3033340

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 1999, 3998, 7996, 9995, 19990, 39980, 133933, 267866, 535732, 669665, 1339330, 2678660]

約数ペア:

[(1, 2678660), (2, 1339330), (4, 669665), (5, 535732), (10, 267866), (20, 133933), (67, 39980), (134, 19990), (268, 9995), (335, 7996), (670, 3998), (1340, 1999)]