18761860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72161}}^1$

素因数の和:72183

約数の個数: 24

約数和(自身を含む): 42431256

約数和(自身を除く): 23669396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72161, 144322, 288644, 360805, 721610, 938093, 1443220, 1876186, 3752372, 4690465, 9380930, 18761860]

約数ペア:

[(1, 18761860), (2, 9380930), (4, 4690465), (5, 3752372), (10, 1876186), (13, 1443220), (20, 938093), (26, 721610), (52, 360805), (65, 288644), (130, 144322), (260, 72161)]