78889655480

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7674091}}^1$

素因数の和:7674359

約数の個数: 32

約数和(自身を含む): 178192416240

約数和(自身を除く): 99302760760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 7674091, 15348182, 30696364, 38370455, 61392728, 76740910, 153481820, 306963640, 1972241387, 3944482774, 7888965548, 9861206935, 15777931096, 19722413870, 39444827740, 78889655480]

約数ペア:

[(1, 78889655480), (2, 39444827740), (4, 19722413870), (5, 15777931096), (8, 9861206935), (10, 7888965548), (20, 3944482774), (40, 1972241387), (257, 306963640), (514, 153481820), (1028, 76740910), (1285, 61392728), (2056, 38370455), (2570, 30696364), (5140, 15348182), (10280, 7674091)]