28785825

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4127}}^1$

素因数の和:4174

約数の個数: 36

約数和(自身を含む): 53234688

約数和(自身を除く): 24448863

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 225, 279, 465, 775, 1395, 2325, 4127, 6975, 12381, 20635, 37143, 61905, 103175, 127937, 185715, 309525, 383811, 639685, 928575, 1151433, 1919055, 3198425, 5757165, 9595275, 28785825]

約数ペア:

[(1, 28785825), (3, 9595275), (5, 5757165), (9, 3198425), (15, 1919055), (25, 1151433), (31, 928575), (45, 639685), (75, 383811), (93, 309525), (155, 185715), (225, 127937), (279, 103175), (465, 61905), (775, 37143), (1395, 20635), (2325, 12381), (4127, 6975)]