28877895

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 52396032

約数和(自身を除く): 23518137

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 127, 155, 163, 279, 381, 465, 489, 635, 815, 1143, 1395, 1467, 1905, 2445, 3937, 5053, 5715, 7335, 11811, 15159, 19685, 20701, 25265, 35433, 45477, 59055, 62103, 75795, 103505, 177165, 186309, 227385, 310515, 641731, 931545, 1925193, 3208655, 5775579, 9625965, 28877895]

約数ペア:

[(1, 28877895), (3, 9625965), (5, 5775579), (9, 3208655), (15, 1925193), (31, 931545), (45, 641731), (93, 310515), (127, 227385), (155, 186309), (163, 177165), (279, 103505), (381, 75795), (465, 62103), (489, 59055), (635, 45477), (815, 35433), (1143, 25265), (1395, 20701), (1467, 19685), (1905, 15159), (2445, 11811), (3937, 7335), (5053, 5715)]