905156789

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{89}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 1094083200

約数和(自身を除く): 188926411

約数列:

[1, 17, 19, 23, 37, 89, 323, 391, 437, 629, 703, 851, 1369, 1513, 1691, 2047, 3293, 7429, 11951, 14467, 16169, 23273, 26011, 28747, 31487, 34799, 38893, 55981, 62567, 75739, 121841, 274873, 442187, 535279, 598253, 661181, 1063639, 1287563, 1439041, 2071297, 2314979, 2802343, 10170301, 24463697, 39354643, 47639831, 53244517, 905156789]

約数ペア:

[(1, 905156789), (17, 53244517), (19, 47639831), (23, 39354643), (37, 24463697), (89, 10170301), (323, 2802343), (391, 2314979), (437, 2071297), (629, 1439041), (703, 1287563), (851, 1063639), (1369, 661181), (1513, 598253), (1691, 535279), (2047, 442187), (3293, 274873), (7429, 121841), (11951, 75739), (14467, 62567), (16169, 55981), (23273, 38893), (26011, 34799), (28747, 31487)]