66640784

素因数分解:

$2^4\times 7^3\times {\mathrm{12143}}^1$

素因数の和:12172

約数の個数: 40

約数和(自身を含む): 150585600

約数和(自身を除く): 83944816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 5488, 12143, 24286, 48572, 85001, 97144, 170002, 194288, 340004, 595007, 680008, 1190014, 1360016, 2380028, 4165049, 4760056, 8330098, 9520112, 16660196, 33320392, 66640784]

約数ペア:

[(1, 66640784), (2, 33320392), (4, 16660196), (7, 9520112), (8, 8330098), (14, 4760056), (16, 4165049), (28, 2380028), (49, 1360016), (56, 1190014), (98, 680008), (112, 595007), (196, 340004), (343, 194288), (392, 170002), (686, 97144), (784, 85001), (1372, 48572), (2744, 24286), (5488, 12143)]