28317825

素因数分解:

$3^2\times 5^2\times {\mathrm{127}}^1\times {\mathrm{991}}^1$

素因数の和:1134

約数の個数: 36

約数和(自身を含む): 51171328

約数和(自身を除く): 22853503

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 127, 225, 381, 635, 991, 1143, 1905, 2973, 3175, 4955, 5715, 8919, 9525, 14865, 24775, 28575, 44595, 74325, 125857, 222975, 377571, 629285, 1132713, 1887855, 3146425, 5663565, 9439275, 28317825]

約数ペア:

[(1, 28317825), (3, 9439275), (5, 5663565), (9, 3146425), (15, 1887855), (25, 1132713), (45, 629285), (75, 377571), (127, 222975), (225, 125857), (381, 74325), (635, 44595), (991, 28575), (1143, 24775), (1905, 14865), (2973, 9525), (3175, 8919), (4955, 5715)]