78881426

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 137557440

約数和(自身を除く): 58676014

約数列:

[1, 2, 13, 19, 26, 38, 71, 142, 169, 173, 247, 338, 346, 494, 923, 1349, 1846, 2249, 2698, 3211, 3287, 4498, 6422, 6574, 11999, 12283, 17537, 23998, 24566, 29237, 35074, 42731, 58474, 85462, 159679, 227981, 233377, 319358, 455962, 466754, 555503, 1111006, 2075827, 3033901, 4151654, 6067802, 39440713, 78881426]

約数ペア:

[(1, 78881426), (2, 39440713), (13, 6067802), (19, 4151654), (26, 3033901), (38, 2075827), (71, 1111006), (142, 555503), (169, 466754), (173, 455962), (247, 319358), (338, 233377), (346, 227981), (494, 159679), (923, 85462), (1349, 58474), (1846, 42731), (2249, 35074), (2698, 29237), (3211, 24566), (3287, 23998), (4498, 17537), (6422, 12283), (6574, 11999)]