638077544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{23873}}^1$

素因数の和:24149

約数の個数: 32

約数和(自身を含む): 1293493320

約数和(自身を除く): 655415776

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 257, 514, 1028, 2056, 3341, 6682, 13364, 23873, 26728, 47746, 95492, 190984, 310349, 620698, 1241396, 2482792, 6135361, 12270722, 24541444, 49082888, 79759693, 159519386, 319038772, 638077544]

約数ペア:

[(1, 638077544), (2, 319038772), (4, 159519386), (8, 79759693), (13, 49082888), (26, 24541444), (52, 12270722), (104, 6135361), (257, 2482792), (514, 1241396), (1028, 620698), (2056, 310349), (3341, 190984), (6682, 95492), (13364, 47746), (23873, 26728)]