81565224

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{261427}}^1$

素因数の和:261449

約数の個数: 32

約数和(自身を含む): 219599520

約数和(自身を除く): 138034296

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 261427, 522854, 784281, 1045708, 1568562, 2091416, 3137124, 3398551, 6274248, 6797102, 10195653, 13594204, 20391306, 27188408, 40782612, 81565224]

約数ペア:

[(1, 81565224), (2, 40782612), (3, 27188408), (4, 20391306), (6, 13594204), (8, 10195653), (12, 6797102), (13, 6274248), (24, 3398551), (26, 3137124), (39, 2091416), (52, 1568562), (78, 1045708), (104, 784281), (156, 522854), (312, 261427)]