128239856

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{313}}^1\times {\mathrm{883}}^1$

素因数の和:1233

約数の個数: 40

約数和(自身を含む): 258145680

約数和(自身を除く): 129905824

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 313, 464, 626, 883, 1252, 1766, 2504, 3532, 5008, 7064, 9077, 14128, 18154, 25607, 36308, 51214, 72616, 102428, 145232, 204856, 276379, 409712, 552758, 1105516, 2211032, 4422064, 8014991, 16029982, 32059964, 64119928, 128239856]

約数ペア:

[(1, 128239856), (2, 64119928), (4, 32059964), (8, 16029982), (16, 8014991), (29, 4422064), (58, 2211032), (116, 1105516), (232, 552758), (313, 409712), (464, 276379), (626, 204856), (883, 145232), (1252, 102428), (1766, 72616), (2504, 51214), (3532, 36308), (5008, 25607), (7064, 18154), (9077, 14128)]