81555334

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3881}}^1$

素因数の和:3988

約数の個数: 32

約数和(自身を含む): 149068800

約数和(自身を除く): 67513466

約数列:

[1, 2, 7, 14, 19, 38, 79, 133, 158, 266, 553, 1106, 1501, 3002, 3881, 7762, 10507, 21014, 27167, 54334, 73739, 147478, 306599, 516173, 613198, 1032346, 2146193, 4292386, 5825381, 11650762, 40777667, 81555334]

約数ペア:

[(1, 81555334), (2, 40777667), (7, 11650762), (14, 5825381), (19, 4292386), (38, 2146193), (79, 1032346), (133, 613198), (158, 516173), (266, 306599), (553, 147478), (1106, 73739), (1501, 54334), (3002, 27167), (3881, 21014), (7762, 10507)]