20143255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 27812160

約数和(自身を除く): 7668905

約数列:

[1, 5, 11, 29, 55, 73, 145, 173, 319, 365, 803, 865, 1595, 1903, 2117, 4015, 5017, 9515, 10585, 12629, 23287, 25085, 55187, 63145, 116435, 138919, 275935, 366241, 694595, 1831205, 4028651, 20143255]

約数ペア:

[(1, 20143255), (5, 4028651), (11, 1831205), (29, 694595), (55, 366241), (73, 275935), (145, 138919), (173, 116435), (319, 63145), (365, 55187), (803, 25085), (865, 23287), (1595, 12629), (1903, 10585), (2117, 9515), (4015, 5017)]