280132275

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1697}}^1$

素因数の和:1812

約数の個数: 48

約数和(自身を含む): 485111808

約数和(自身を除く): 204979533

約数列:

[1, 3, 5, 15, 25, 31, 71, 75, 93, 155, 213, 355, 465, 775, 1065, 1697, 1775, 2201, 2325, 5091, 5325, 6603, 8485, 11005, 25455, 33015, 42425, 52607, 55025, 120487, 127275, 157821, 165075, 263035, 361461, 602435, 789105, 1315175, 1807305, 3012175, 3735097, 3945525, 9036525, 11205291, 18675485, 56026455, 93377425, 280132275]

約数ペア:

[(1, 280132275), (3, 93377425), (5, 56026455), (15, 18675485), (25, 11205291), (31, 9036525), (71, 3945525), (75, 3735097), (93, 3012175), (155, 1807305), (213, 1315175), (355, 789105), (465, 602435), (775, 361461), (1065, 263035), (1697, 165075), (1775, 157821), (2201, 127275), (2325, 120487), (5091, 55025), (5325, 52607), (6603, 42425), (8485, 33015), (11005, 25455)]