80494040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16631}}^1$

素因数の和:16664

約数の個数: 48

約数和(自身を含む): 199085040

約数和(自身を除く): 118591000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 16631, 33262, 66524, 83155, 133048, 166310, 182941, 332620, 365882, 665240, 731764, 914705, 1463528, 1829410, 2012351, 3658820, 4024702, 7317640, 8049404, 10061755, 16098808, 20123510, 40247020, 80494040]

約数ペア:

[(1, 80494040), (2, 40247020), (4, 20123510), (5, 16098808), (8, 10061755), (10, 8049404), (11, 7317640), (20, 4024702), (22, 3658820), (40, 2012351), (44, 1829410), (55, 1463528), (88, 914705), (110, 731764), (121, 665240), (220, 365882), (242, 332620), (440, 182941), (484, 166310), (605, 133048), (968, 83155), (1210, 66524), (2420, 33262), (4840, 16631)]