20512890872

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{269651}}^1$

素因数の和:269951

約数の個数: 32

約数和(自身を含む): 39655023120

約数和(自身を除く): 19142132248

約数列:

[1, 2, 4, 8, 37, 74, 148, 257, 296, 514, 1028, 2056, 9509, 19018, 38036, 76072, 269651, 539302, 1078604, 2157208, 9977087, 19954174, 39908348, 69300307, 79816696, 138600614, 277201228, 554402456, 2564111359, 5128222718, 10256445436, 20512890872]

約数ペア:

[(1, 20512890872), (2, 10256445436), (4, 5128222718), (8, 2564111359), (37, 554402456), (74, 277201228), (148, 138600614), (257, 79816696), (296, 69300307), (514, 39908348), (1028, 19954174), (2056, 9977087), (9509, 2157208), (19018, 1078604), (38036, 539302), (76072, 269651)]