131256138

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 290449152

約数和(自身を除く): 159193014

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 137, 142, 173, 213, 274, 346, 411, 426, 519, 822, 923, 1038, 1781, 1846, 2249, 2769, 3562, 4498, 5343, 5538, 6747, 9727, 10686, 12283, 13494, 19454, 23701, 24566, 29181, 36849, 47402, 58362, 71103, 73698, 126451, 142206, 159679, 252902, 308113, 319358, 379353, 479037, 616226, 758706, 924339, 958074, 1682771, 1848678, 3365542, 5048313, 10096626, 21876023, 43752046, 65628069, 131256138]

約数ペア:

[(1, 131256138), (2, 65628069), (3, 43752046), (6, 21876023), (13, 10096626), (26, 5048313), (39, 3365542), (71, 1848678), (78, 1682771), (137, 958074), (142, 924339), (173, 758706), (213, 616226), (274, 479037), (346, 379353), (411, 319358), (426, 308113), (519, 252902), (822, 159679), (923, 142206), (1038, 126451), (1781, 73698), (1846, 71103), (2249, 58362), (2769, 47402), (3562, 36849), (4498, 29181), (5343, 24566), (5538, 23701), (6747, 19454), (9727, 13494), (10686, 12283)]