28368860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109111}}^1$

素因数の和:109133

約数の個数: 24

約数和(自身を含む): 64157856

約数和(自身を除く): 35788996

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109111, 218222, 436444, 545555, 1091110, 1418443, 2182220, 2836886, 5673772, 7092215, 14184430, 28368860]

約数ペア:

[(1, 28368860), (2, 14184430), (4, 7092215), (5, 5673772), (10, 2836886), (13, 2182220), (20, 1418443), (26, 1091110), (52, 545555), (65, 436444), (130, 218222), (260, 109111)]