28515865

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 41598720

約数和(自身を除く): 13082855

約数列:

[1, 5, 7, 19, 35, 95, 133, 137, 313, 665, 685, 959, 1565, 2191, 2603, 4795, 5947, 10955, 13015, 18221, 29735, 41629, 42881, 91105, 208145, 214405, 300167, 814739, 1500835, 4073695, 5703173, 28515865]

約数ペア:

[(1, 28515865), (5, 5703173), (7, 4073695), (19, 1500835), (35, 814739), (95, 300167), (133, 214405), (137, 208145), (313, 91105), (665, 42881), (685, 41629), (959, 29735), (1565, 18221), (2191, 13015), (2603, 10955), (4795, 5947)]