18390020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83591}}^1$

素因数の和:83611

約数の個数: 24

約数和(自身を含む): 42130368

約数和(自身を除く): 23740348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 83591, 167182, 334364, 417955, 835910, 919501, 1671820, 1839002, 3678004, 4597505, 9195010, 18390020]

約数ペア:

[(1, 18390020), (2, 9195010), (4, 4597505), (5, 3678004), (10, 1839002), (11, 1671820), (20, 919501), (22, 835910), (44, 417955), (55, 334364), (110, 167182), (220, 83591)]