205575975

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{839}}^1$

素因数の和:883

約数の個数: 90

約数和(自身を含む): 419061720

約数和(自身を除く): 213485745

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 81, 99, 121, 135, 165, 225, 275, 297, 363, 405, 495, 605, 675, 825, 839, 891, 1089, 1485, 1815, 2025, 2475, 2517, 3025, 3267, 4195, 4455, 5445, 7425, 7551, 9075, 9229, 9801, 12585, 16335, 20975, 22275, 22653, 27225, 27687, 37755, 46145, 49005, 62925, 67959, 81675, 83061, 101519, 113265, 138435, 188775, 230725, 245025, 249183, 304557, 339795, 415305, 507595, 566325, 692175, 747549, 913671, 1245915, 1522785, 1698975, 2076525, 2537975, 2741013, 3737745, 4568355, 6229575, 7613925, 8223039, 13705065, 18688725, 22841775, 41115195, 68525325, 205575975]

約数ペア:

[(1, 205575975), (3, 68525325), (5, 41115195), (9, 22841775), (11, 18688725), (15, 13705065), (25, 8223039), (27, 7613925), (33, 6229575), (45, 4568355), (55, 3737745), (75, 2741013), (81, 2537975), (99, 2076525), (121, 1698975), (135, 1522785), (165, 1245915), (225, 913671), (275, 747549), (297, 692175), (363, 566325), (405, 507595), (495, 415305), (605, 339795), (675, 304557), (825, 249183), (839, 245025), (891, 230725), (1089, 188775), (1485, 138435), (1815, 113265), (2025, 101519), (2475, 83061), (2517, 81675), (3025, 67959), (3267, 62925), (4195, 49005), (4455, 46145), (5445, 37755), (7425, 27687), (7551, 27225), (9075, 22653), (9229, 22275), (9801, 20975), (12585, 16335)]