18387560

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4463}}^1$

素因数の和:4577

約数の個数: 32

約数和(自身を含む): 41783040

約数和(自身を除く): 23395480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4463, 8926, 17852, 22315, 35704, 44630, 89260, 178520, 459689, 919378, 1838756, 2298445, 3677512, 4596890, 9193780, 18387560]

約数ペア:

[(1, 18387560), (2, 9193780), (4, 4596890), (5, 3677512), (8, 2298445), (10, 1838756), (20, 919378), (40, 459689), (103, 178520), (206, 89260), (412, 44630), (515, 35704), (824, 22315), (1030, 17852), (2060, 8926), (4120, 4463)]