128365744

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{997}}^1$

素因数の和:1637

約数の個数: 40

約数和(自身を含む): 268541840

約数和(自身を除く): 140176096

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 619, 997, 1238, 1994, 2476, 3988, 4952, 7976, 8047, 9904, 12961, 15952, 16094, 25922, 32188, 51844, 64376, 103688, 128752, 207376, 617143, 1234286, 2468572, 4937144, 8022859, 9874288, 16045718, 32091436, 64182872, 128365744]

約数ペア:

[(1, 128365744), (2, 64182872), (4, 32091436), (8, 16045718), (13, 9874288), (16, 8022859), (26, 4937144), (52, 2468572), (104, 1234286), (208, 617143), (619, 207376), (997, 128752), (1238, 103688), (1994, 64376), (2476, 51844), (3988, 32188), (4952, 25922), (7976, 16094), (8047, 15952), (9904, 12961)]