289520005

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2657}}^1$

素因数の和:2749

約数の個数: 32

約数和(自身を含む): 387855360

約数和(自身を除く): 98335355

約数列:

[1, 5, 19, 31, 37, 95, 155, 185, 589, 703, 1147, 2657, 2945, 3515, 5735, 13285, 21793, 50483, 82367, 98309, 108965, 252415, 411835, 491545, 1564973, 1867871, 3047579, 7824865, 9339355, 15237895, 57904001, 289520005]

約数ペア:

[(1, 289520005), (5, 57904001), (19, 15237895), (31, 9339355), (37, 7824865), (95, 3047579), (155, 1867871), (185, 1564973), (589, 491545), (703, 411835), (1147, 252415), (2657, 108965), (2945, 98309), (3515, 82367), (5735, 50483), (13285, 21793)]