81045136

素因数分解:

$2^4\times {\mathrm{653}}^1\times {\mathrm{7757}}^1$

素因数の和:8418

約数の個数: 20

約数和(自身を含む): 157285692

約数和(自身を除く): 76240556

約数列:

[1, 2, 4, 8, 16, 653, 1306, 2612, 5224, 7757, 10448, 15514, 31028, 62056, 124112, 5065321, 10130642, 20261284, 40522568, 81045136]

約数ペア:

[(1, 81045136), (2, 40522568), (4, 20261284), (8, 10130642), (16, 5065321), (653, 124112), (1306, 62056), (2612, 31028), (5224, 15514), (7757, 10448)]