257564679905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^3\times {\mathrm{78229}}^1$

素因数の和:78358

約数の個数: 32

約数和(自身を含む): 342102919200

約数和(自身を除く): 84538239295

約数列:

[1, 5, 13, 37, 65, 185, 481, 1369, 2405, 6845, 17797, 50653, 78229, 88985, 253265, 391145, 658489, 1016977, 2894473, 3292445, 5084885, 14472365, 37628149, 107095501, 188140745, 535477505, 1392241513, 3962533537, 6961207565, 19812667685, 51512935981, 257564679905]

約数ペア:

[(1, 257564679905), (5, 51512935981), (13, 19812667685), (37, 6961207565), (65, 3962533537), (185, 1392241513), (481, 535477505), (1369, 188140745), (2405, 107095501), (6845, 37628149), (17797, 14472365), (50653, 5084885), (78229, 3292445), (88985, 2894473), (253265, 1016977), (391145, 658489)]