81293869072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20570311}}^1$

素因数の和:20570351

約数の個数: 40

約数和(自身を含む): 178550308160

約数和(自身を除く): 97256439088

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 20570311, 41140622, 82281244, 164562488, 267414043, 329124976, 390835909, 534828086, 781671818, 1069656172, 1563343636, 2139312344, 3126687272, 4278624688, 5080866817, 6253374544, 10161733634, 20323467268, 40646934536, 81293869072]

約数ペア:

[(1, 81293869072), (2, 40646934536), (4, 20323467268), (8, 10161733634), (13, 6253374544), (16, 5080866817), (19, 4278624688), (26, 3126687272), (38, 2139312344), (52, 1563343636), (76, 1069656172), (104, 781671818), (152, 534828086), (208, 390835909), (247, 329124976), (304, 267414043), (494, 164562488), (988, 82281244), (1976, 41140622), (3952, 20570311)]