28298775

素因数分解:

$3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{2971}}^1$

素因数の和:3111

約数の個数: 24

約数和(自身を含む): 47171584

約数和(自身を除く): 18872809

約数列:

[1, 3, 5, 15, 25, 75, 127, 381, 635, 1905, 2971, 3175, 8913, 9525, 14855, 44565, 74275, 222825, 377317, 1131951, 1886585, 5659755, 9432925, 28298775]

約数ペア:

[(1, 28298775), (3, 9432925), (5, 5659755), (15, 1886585), (25, 1131951), (75, 377317), (127, 222825), (381, 74275), (635, 44565), (1905, 14855), (2971, 9525), (3175, 8913)]