18040040

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{743}}^1$

素因数の和:1361

約数の個数: 32

約数和(自身を含む): 40711680

約数和(自身を除く): 22671640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 743, 1214, 1486, 2428, 2972, 3035, 3715, 4856, 5944, 6070, 7430, 12140, 14860, 24280, 29720, 451001, 902002, 1804004, 2255005, 3608008, 4510010, 9020020, 18040040]

約数ペア:

[(1, 18040040), (2, 9020020), (4, 4510010), (5, 3608008), (8, 2255005), (10, 1804004), (20, 902002), (40, 451001), (607, 29720), (743, 24280), (1214, 14860), (1486, 12140), (2428, 7430), (2972, 6070), (3035, 5944), (3715, 4856)]