18422960

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{547}}^1$

素因数の和:981

約数の個数: 40

約数和(自身を含む): 43013616

約数和(自身を除く): 24590656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 547, 842, 1094, 1684, 2105, 2188, 2735, 3368, 4210, 4376, 5470, 6736, 8420, 8752, 10940, 16840, 21880, 33680, 43760, 230287, 460574, 921148, 1151435, 1842296, 2302870, 3684592, 4605740, 9211480, 18422960]

約数ペア:

[(1, 18422960), (2, 9211480), (4, 4605740), (5, 3684592), (8, 2302870), (10, 1842296), (16, 1151435), (20, 921148), (40, 460574), (80, 230287), (421, 43760), (547, 33680), (842, 21880), (1094, 16840), (1684, 10940), (2105, 8752), (2188, 8420), (2735, 6736), (3368, 5470), (4210, 4376)]