128400848

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{195733}}^1$

素因数の和:195782

約数の個数: 20

約数和(自身を含む): 254845668

約数和(自身を除く): 126444820

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 195733, 391466, 782932, 1565864, 3131728, 8025053, 16050106, 32100212, 64200424, 128400848]

約数ペア:

[(1, 128400848), (2, 64200424), (4, 32100212), (8, 16050106), (16, 8025053), (41, 3131728), (82, 1565864), (164, 782932), (328, 391466), (656, 195733)]