18260450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{2161}}^1$

素因数の和:2199

約数の個数: 36

約数和(自身を含む): 36795078

約数和(自身を除く): 18534628

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 2161, 4225, 4322, 8450, 10805, 21610, 28093, 54025, 56186, 108050, 140465, 280930, 365209, 702325, 730418, 1404650, 1826045, 3652090, 9130225, 18260450]

約数ペア:

[(1, 18260450), (2, 9130225), (5, 3652090), (10, 1826045), (13, 1404650), (25, 730418), (26, 702325), (50, 365209), (65, 280930), (130, 140465), (169, 108050), (325, 56186), (338, 54025), (650, 28093), (845, 21610), (1690, 10805), (2161, 8450), (4225, 4322)]