72788890864

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{239437141}}^1$

素因数の和:239437168

約数の個数: 20

約数和(自身を含む): 148451028040

約数和(自身を除く): 75662137176

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 239437141, 478874282, 957748564, 1915497128, 3830994256, 4549305679, 9098611358, 18197222716, 36394445432, 72788890864]

約数ペア:

[(1, 72788890864), (2, 36394445432), (4, 18197222716), (8, 9098611358), (16, 4549305679), (19, 3830994256), (38, 1915497128), (76, 957748564), (152, 478874282), (304, 239437141)]