128201268

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{821803}}^1$

素因数の和:821823

約数の個数: 24

約数和(自身を含む): 322147168

約数和(自身を除く): 193945900

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 821803, 1643606, 2465409, 3287212, 4930818, 9861636, 10683439, 21366878, 32050317, 42733756, 64100634, 128201268]

約数ペア:

[(1, 128201268), (2, 64100634), (3, 42733756), (4, 32050317), (6, 21366878), (12, 10683439), (13, 9861636), (26, 4930818), (39, 3287212), (52, 2465409), (78, 1643606), (156, 821803)]