28309879960

素因数分解:

$2^3\times 5^1\times {\mathrm{707746999}}^1$

素因数の和:707747010

約数の個数: 16

約数和(自身を含む): 63697230000

約数和(自身を除く): 35387350040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 707746999, 1415493998, 2830987996, 3538734995, 5661975992, 7077469990, 14154939980, 28309879960]

約数ペア:

[(1, 28309879960), (2, 14154939980), (4, 7077469990), (5, 5661975992), (8, 3538734995), (10, 2830987996), (20, 1415493998), (40, 707746999)]