217336925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 310605120

約数和(自身を除く): 93268195

約数列:

[1, 5, 13, 17, 25, 65, 85, 139, 221, 283, 325, 425, 695, 1105, 1415, 1807, 2363, 3475, 3679, 4811, 5525, 7075, 9035, 11815, 18395, 24055, 30719, 39337, 45175, 59075, 62543, 91975, 120275, 153595, 196685, 312715, 511381, 668729, 767975, 983425, 1563575, 2556905, 3343645, 8693477, 12784525, 16718225, 43467385, 217336925]

約数ペア:

[(1, 217336925), (5, 43467385), (13, 16718225), (17, 12784525), (25, 8693477), (65, 3343645), (85, 2556905), (139, 1563575), (221, 983425), (283, 767975), (325, 668729), (425, 511381), (695, 312715), (1105, 196685), (1415, 153595), (1807, 120275), (2363, 91975), (3475, 62543), (3679, 59075), (4811, 45175), (5525, 39337), (7075, 30719), (9035, 24055), (11815, 18395)]