28085018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 46947600

約数和(自身を除く): 18862582

約数列:

[1, 2, 13, 26, 53, 89, 106, 178, 229, 458, 689, 1157, 1378, 2314, 2977, 4717, 5954, 9434, 12137, 20381, 24274, 40762, 61321, 122642, 157781, 264953, 315562, 529906, 1080193, 2160386, 14042509, 28085018]

約数ペア:

[(1, 28085018), (2, 14042509), (13, 2160386), (26, 1080193), (53, 529906), (89, 315562), (106, 264953), (178, 157781), (229, 122642), (458, 61321), (689, 40762), (1157, 24274), (1378, 20381), (2314, 12137), (2977, 9434), (4717, 5954)]