25978568

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{233}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 61326720

約数和(自身を除く): 35348152

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 181, 233, 308, 362, 466, 616, 724, 932, 1267, 1448, 1631, 1864, 1991, 2534, 2563, 3262, 3982, 5068, 5126, 6524, 7964, 10136, 10252, 13048, 13937, 15928, 17941, 20504, 27874, 35882, 42173, 55748, 71764, 84346, 111496, 143528, 168692, 295211, 337384, 463903, 590422, 927806, 1180844, 1855612, 2361688, 3247321, 3711224, 6494642, 12989284, 25978568]

約数ペア:

[(1, 25978568), (2, 12989284), (4, 6494642), (7, 3711224), (8, 3247321), (11, 2361688), (14, 1855612), (22, 1180844), (28, 927806), (44, 590422), (56, 463903), (77, 337384), (88, 295211), (154, 168692), (181, 143528), (233, 111496), (308, 84346), (362, 71764), (466, 55748), (616, 42173), (724, 35882), (932, 27874), (1267, 20504), (1448, 17941), (1631, 15928), (1864, 13937), (1991, 13048), (2534, 10252), (2563, 10136), (3262, 7964), (3982, 6524), (5068, 5126)]