28885725

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{1061}}^1$

素因数の和:1099

約数の個数: 54

約数和(自身を含む): 56922138

約数和(自身を除く): 28036413

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 165, 225, 275, 363, 495, 605, 825, 1061, 1089, 1815, 2475, 3025, 3183, 5305, 5445, 9075, 9549, 11671, 15915, 26525, 27225, 35013, 47745, 58355, 79575, 105039, 128381, 175065, 238725, 291775, 385143, 525195, 641905, 875325, 1155429, 1925715, 2625975, 3209525, 5777145, 9628575, 28885725]

約数ペア:

[(1, 28885725), (3, 9628575), (5, 5777145), (9, 3209525), (11, 2625975), (15, 1925715), (25, 1155429), (33, 875325), (45, 641905), (55, 525195), (75, 385143), (99, 291775), (121, 238725), (165, 175065), (225, 128381), (275, 105039), (363, 79575), (495, 58355), (605, 47745), (825, 35013), (1061, 27225), (1089, 26525), (1815, 15915), (2475, 11671), (3025, 9549), (3183, 9075), (5305, 5445)]