81900014

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{631}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 143671296

約数和(自身を除く): 61771282

約数列:

[1, 2, 7, 14, 73, 127, 146, 254, 511, 631, 889, 1022, 1262, 1778, 4417, 8834, 9271, 18542, 46063, 64897, 80137, 92126, 129794, 160274, 322441, 560959, 644882, 1121918, 5850001, 11700002, 40950007, 81900014]

約数ペア:

[(1, 81900014), (2, 40950007), (7, 11700002), (14, 5850001), (73, 1121918), (127, 644882), (146, 560959), (254, 322441), (511, 160274), (631, 129794), (889, 92126), (1022, 80137), (1262, 64897), (1778, 46063), (4417, 18542), (8834, 9271)]