20818850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32029}}^1$

素因数の和:32054

約数の個数: 24

約数和(自身を含む): 41703060

約数和(自身を除く): 20884210

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32029, 64058, 160145, 320290, 416377, 800725, 832754, 1601450, 2081885, 4163770, 10409425, 20818850]

約数ペア:

[(1, 20818850), (2, 10409425), (5, 4163770), (10, 2081885), (13, 1601450), (25, 832754), (26, 800725), (50, 416377), (65, 320290), (130, 160145), (325, 64058), (650, 32029)]