20480119

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 25344000

約数和(自身を除く): 4863881

約数列:

[1, 11, 19, 29, 31, 109, 209, 319, 341, 551, 589, 899, 1199, 2071, 3161, 3379, 6061, 6479, 9889, 17081, 22781, 34771, 37169, 60059, 64201, 97991, 187891, 660649, 706211, 1077901, 1861829, 20480119]

約数ペア:

[(1, 20480119), (11, 1861829), (19, 1077901), (29, 706211), (31, 660649), (109, 187891), (209, 97991), (319, 64201), (341, 60059), (551, 37169), (589, 34771), (899, 22781), (1199, 17081), (2071, 9889), (3161, 6479), (3379, 6061)]