79726960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:386

約数の個数: 80

約数和(自身を含む): 192487680

約数和(自身を除く): 112760720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 109, 164, 205, 218, 223, 328, 410, 436, 446, 545, 656, 820, 872, 892, 1090, 1115, 1640, 1744, 1784, 2180, 2230, 3280, 3568, 4360, 4460, 4469, 8720, 8920, 8938, 9143, 17840, 17876, 18286, 22345, 24307, 35752, 36572, 44690, 45715, 48614, 71504, 73144, 89380, 91430, 97228, 121535, 146288, 178760, 182860, 194456, 243070, 357520, 365720, 388912, 486140, 731440, 972280, 996587, 1944560, 1993174, 3986348, 4982935, 7972696, 9965870, 15945392, 19931740, 39863480, 79726960]

約数ペア:

[(1, 79726960), (2, 39863480), (4, 19931740), (5, 15945392), (8, 9965870), (10, 7972696), (16, 4982935), (20, 3986348), (40, 1993174), (41, 1944560), (80, 996587), (82, 972280), (109, 731440), (164, 486140), (205, 388912), (218, 365720), (223, 357520), (328, 243070), (410, 194456), (436, 182860), (446, 178760), (545, 146288), (656, 121535), (820, 97228), (872, 91430), (892, 89380), (1090, 73144), (1115, 71504), (1640, 48614), (1744, 45715), (1784, 44690), (2180, 36572), (2230, 35752), (3280, 24307), (3568, 22345), (4360, 18286), (4460, 17876), (4469, 17840), (8720, 9143), (8920, 8938)]