18304040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11161}}^1$

素因数の和:11213

約数の個数: 32

約数和(自身を含む): 42192360

約数和(自身を除く): 23888320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11161, 22322, 44644, 55805, 89288, 111610, 223220, 446440, 457601, 915202, 1830404, 2288005, 3660808, 4576010, 9152020, 18304040]

約数ペア:

[(1, 18304040), (2, 9152020), (4, 4576010), (5, 3660808), (8, 2288005), (10, 1830404), (20, 915202), (40, 457601), (41, 446440), (82, 223220), (164, 111610), (205, 89288), (328, 55805), (410, 44644), (820, 22322), (1640, 11161)]