77708080

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13681}}^1$

素因数の和:13765

約数の個数: 40

約数和(自身を含む): 183229344

約数和(自身を除く): 105521264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 13681, 27362, 54724, 68405, 109448, 136810, 218896, 273620, 547240, 971351, 1094480, 1942702, 3885404, 4856755, 7770808, 9713510, 15541616, 19427020, 38854040, 77708080]

約数ペア:

[(1, 77708080), (2, 38854040), (4, 19427020), (5, 15541616), (8, 9713510), (10, 7770808), (16, 4856755), (20, 3885404), (40, 1942702), (71, 1094480), (80, 971351), (142, 547240), (284, 273620), (355, 218896), (568, 136810), (710, 109448), (1136, 68405), (1420, 54724), (2840, 27362), (5680, 13681)]