81741212

素因数分解:

$2^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{4049}}^1$

素因数の和:4170

約数の個数: 36

約数和(自身を含む): 168058800

約数和(自身を除く): 86317588

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 103, 196, 206, 412, 721, 1442, 2884, 4049, 5047, 8098, 10094, 16196, 20188, 28343, 56686, 113372, 198401, 396802, 417047, 793604, 834094, 1668188, 2919329, 5838658, 11677316, 20435303, 40870606, 81741212]

約数ペア:

[(1, 81741212), (2, 40870606), (4, 20435303), (7, 11677316), (14, 5838658), (28, 2919329), (49, 1668188), (98, 834094), (103, 793604), (196, 417047), (206, 396802), (412, 198401), (721, 113372), (1442, 56686), (2884, 28343), (4049, 20188), (5047, 16196), (8098, 10094)]