81553368

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{261389}}^1$

素因数の和:261411

約数の個数: 32

約数和(自身を含む): 219567600

約数和(自身を除く): 138014232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 261389, 522778, 784167, 1045556, 1568334, 2091112, 3136668, 3398057, 6273336, 6796114, 10194171, 13592228, 20388342, 27184456, 40776684, 81553368]

約数ペア:

[(1, 81553368), (2, 40776684), (3, 27184456), (4, 20388342), (6, 13592228), (8, 10194171), (12, 6796114), (13, 6273336), (24, 3398057), (26, 3136668), (39, 2091112), (52, 1568334), (78, 1045556), (104, 784167), (156, 522778), (312, 261389)]