90208979

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 113218560

約数和(自身を除く): 23009581

約数列:

[1, 7, 19, 41, 71, 133, 233, 287, 497, 779, 1349, 1631, 2911, 4427, 5453, 9443, 9553, 16543, 20377, 30989, 55309, 66871, 115801, 181507, 314317, 387163, 678263, 1270549, 2200219, 4747841, 12886997, 90208979]

約数ペア:

[(1, 90208979), (7, 12886997), (19, 4747841), (41, 2200219), (71, 1270549), (133, 678263), (233, 387163), (287, 314317), (497, 181507), (779, 115801), (1349, 66871), (1631, 55309), (2911, 30989), (4427, 20377), (5453, 16543), (9443, 9553)]