77490640

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3769}}^1$

素因数の和:4039

約数の個数: 40

約数和(自身を含む): 180914760

約数和(自身を除く): 103424120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 3769, 4112, 5140, 7538, 10280, 15076, 18845, 20560, 30152, 37690, 60304, 75380, 150760, 301520, 968633, 1937266, 3874532, 4843165, 7749064, 9686330, 15498128, 19372660, 38745320, 77490640]

約数ペア:

[(1, 77490640), (2, 38745320), (4, 19372660), (5, 15498128), (8, 9686330), (10, 7749064), (16, 4843165), (20, 3874532), (40, 1937266), (80, 968633), (257, 301520), (514, 150760), (1028, 75380), (1285, 60304), (2056, 37690), (2570, 30152), (3769, 20560), (4112, 18845), (5140, 15076), (7538, 10280)]