28687785

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1697}}^1$

素因数の和:1742

約数の個数: 48

約数和(自身を含む): 55748736

約数和(自身を除く): 27060951

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 69, 105, 115, 147, 161, 245, 345, 483, 735, 805, 1127, 1697, 2415, 3381, 5091, 5635, 8485, 11879, 16905, 25455, 35637, 39031, 59395, 83153, 117093, 178185, 195155, 249459, 273217, 415765, 585465, 819651, 1247295, 1366085, 1912519, 4098255, 5737557, 9562595, 28687785]

約数ペア:

[(1, 28687785), (3, 9562595), (5, 5737557), (7, 4098255), (15, 1912519), (21, 1366085), (23, 1247295), (35, 819651), (49, 585465), (69, 415765), (105, 273217), (115, 249459), (147, 195155), (161, 178185), (245, 117093), (345, 83153), (483, 59395), (735, 39031), (805, 35637), (1127, 25455), (1697, 16905), (2415, 11879), (3381, 8485), (5091, 5635)]