277206545

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{821}}^1\times {\mathrm{877}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 415708416

約数和(自身を除く): 138501871

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 821, 877, 4105, 4385, 5747, 6139, 9031, 9647, 28735, 30695, 45155, 48235, 63217, 67529, 316085, 337645, 720017, 3600085, 5040119, 7920187, 25200595, 39600935, 55441309, 277206545]

約数ペア:

[(1, 277206545), (5, 55441309), (7, 39600935), (11, 25200595), (35, 7920187), (55, 5040119), (77, 3600085), (385, 720017), (821, 337645), (877, 316085), (4105, 67529), (4385, 63217), (5747, 48235), (6139, 45155), (9031, 30695), (9647, 28735)]