255721908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1639243}}^1$

素因数の和:1639263

約数の個数: 24

約数和(自身を含む): 642583648

約数和(自身を除く): 386861740

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 1639243, 3278486, 4917729, 6556972, 9835458, 19670916, 21310159, 42620318, 63930477, 85240636, 127860954, 255721908]

約数ペア:

[(1, 255721908), (2, 127860954), (3, 85240636), (4, 63930477), (6, 42620318), (12, 21310159), (13, 19670916), (26, 9835458), (39, 6556972), (52, 4917729), (78, 3278486), (156, 1639243)]