81659415

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{743}}^1$

素因数の和:1199

約数の個数: 32

約数和(自身を含む): 138848256

約数和(自身を除く): 57188841

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 431, 743, 1293, 2155, 2229, 3715, 6465, 7327, 11145, 12631, 21981, 36635, 37893, 63155, 109905, 189465, 320233, 960699, 1601165, 4803495, 5443961, 16331883, 27219805, 81659415]

約数ペア:

[(1, 81659415), (3, 27219805), (5, 16331883), (15, 5443961), (17, 4803495), (51, 1601165), (85, 960699), (255, 320233), (431, 189465), (743, 109905), (1293, 63155), (2155, 37893), (2229, 36635), (3715, 21981), (6465, 12631), (7327, 11145)]