28043860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8297}}^1$

素因数の和:8332

約数の個数: 36

約数和(自身を含む): 63778428

約数和(自身を除く): 35734568

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 8297, 16594, 33188, 41485, 82970, 107861, 165940, 215722, 431444, 539305, 1078610, 1402193, 2157220, 2804386, 5608772, 7010965, 14021930, 28043860]

約数ペア:

[(1, 28043860), (2, 14021930), (4, 7010965), (5, 5608772), (10, 2804386), (13, 2157220), (20, 1402193), (26, 1078610), (52, 539305), (65, 431444), (130, 215722), (169, 165940), (260, 107861), (338, 82970), (676, 41485), (845, 33188), (1690, 16594), (3380, 8297)]