81013264

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{266491}}^1$

素因数の和:266518

約数の個数: 20

約数和(自身を含む): 165225040

約数和(自身を除く): 84211776

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 266491, 532982, 1065964, 2131928, 4263856, 5063329, 10126658, 20253316, 40506632, 81013264]

約数ペア:

[(1, 81013264), (2, 40506632), (4, 20253316), (8, 10126658), (16, 5063329), (19, 4263856), (38, 2131928), (76, 1065964), (152, 532982), (304, 266491)]