81688072

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{919}}^1$

素因数の和:1237

約数の個数: 32

約数和(自身を含む): 157651200

約数和(自身を除く): 75963128

約数列:

[1, 2, 4, 8, 41, 82, 164, 271, 328, 542, 919, 1084, 1838, 2168, 3676, 7352, 11111, 22222, 37679, 44444, 75358, 88888, 150716, 249049, 301432, 498098, 996196, 1992392, 10211009, 20422018, 40844036, 81688072]

約数ペア:

[(1, 81688072), (2, 40844036), (4, 20422018), (8, 10211009), (41, 1992392), (82, 996196), (164, 498098), (271, 301432), (328, 249049), (542, 150716), (919, 88888), (1084, 75358), (1838, 44444), (2168, 37679), (3676, 22222), (7352, 11111)]