20940040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47591}}^1$

素因数の和:47613

約数の個数: 32

約数和(自身を含む): 51399360

約数和(自身を除く): 30459320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47591, 95182, 190364, 237955, 380728, 475910, 523501, 951820, 1047002, 1903640, 2094004, 2617505, 4188008, 5235010, 10470020, 20940040]

約数ペア:

[(1, 20940040), (2, 10470020), (4, 5235010), (5, 4188008), (8, 2617505), (10, 2094004), (11, 1903640), (20, 1047002), (22, 951820), (40, 523501), (44, 475910), (55, 380728), (88, 237955), (110, 190364), (220, 95182), (440, 47591)]