20187712805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{992269}}^1$

素因数の和:992600

約数の個数: 16

約数和(自身を含む): 26172113520

約数和(自身を除く): 5984400715

約数列:

[1, 5, 13, 65, 313, 1565, 4069, 20345, 992269, 4961345, 12899497, 64497485, 310580197, 1552900985, 4037542561, 20187712805]

約数ペア:

[(1, 20187712805), (5, 4037542561), (13, 1552900985), (65, 310580197), (313, 64497485), (1565, 12899497), (4069, 4961345), (20345, 992269)]