28809315

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{127}}^1$

素因数の和:280

約数の個数: 36

約数和(自身を含む): 51048192

約数和(自身を除く): 22238877

約数列:

[1, 3, 5, 9, 15, 45, 71, 127, 213, 355, 381, 635, 639, 1065, 1143, 1905, 3195, 5041, 5715, 9017, 15123, 25205, 27051, 45085, 45369, 75615, 81153, 135255, 226845, 405765, 640207, 1920621, 3201035, 5761863, 9603105, 28809315]

約数ペア:

[(1, 28809315), (3, 9603105), (5, 5761863), (9, 3201035), (15, 1920621), (45, 640207), (71, 405765), (127, 226845), (213, 135255), (355, 81153), (381, 75615), (635, 45369), (639, 45085), (1065, 27051), (1143, 25205), (1905, 15123), (3195, 9017), (5041, 5715)]