638992772

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{937}}^1\times {\mathrm{1409}}^1$

素因数の和:2372

約数の個数: 36

約数和(自身を含む): 1231321980

約数和(自身を除く): 592329208

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 937, 1409, 1874, 2818, 3748, 5636, 10307, 15499, 20614, 30998, 41228, 61996, 113377, 170489, 226754, 340978, 453508, 681956, 1320233, 2640466, 5280932, 14522563, 29045126, 58090252, 159748193, 319496386, 638992772]

約数ペア:

[(1, 638992772), (2, 319496386), (4, 159748193), (11, 58090252), (22, 29045126), (44, 14522563), (121, 5280932), (242, 2640466), (484, 1320233), (937, 681956), (1409, 453508), (1874, 340978), (2818, 226754), (3748, 170489), (5636, 113377), (10307, 61996), (15499, 41228), (20614, 30998)]