18442700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4289}}^1$

素因数の和:4346

約数の個数: 36

約数和(自身を含む): 40960920

約数和(自身を除く): 22518220

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4289, 4300, 8578, 17156, 21445, 42890, 85780, 107225, 184427, 214450, 368854, 428900, 737708, 922135, 1844270, 3688540, 4610675, 9221350, 18442700]

約数ペア:

[(1, 18442700), (2, 9221350), (4, 4610675), (5, 3688540), (10, 1844270), (20, 922135), (25, 737708), (43, 428900), (50, 368854), (86, 214450), (100, 184427), (172, 107225), (215, 85780), (430, 42890), (860, 21445), (1075, 17156), (2150, 8578), (4289, 4300)]