81221656

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{13033}}^1$

素因数の和:13099

約数の個数: 32

約数和(自身を含む): 164228400

約数和(自身を除く): 83006744

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 152, 164, 328, 779, 1558, 3116, 6232, 13033, 26066, 52132, 104264, 247627, 495254, 534353, 990508, 1068706, 1981016, 2137412, 4274824, 10152707, 20305414, 40610828, 81221656]

約数ペア:

[(1, 81221656), (2, 40610828), (4, 20305414), (8, 10152707), (19, 4274824), (38, 2137412), (41, 1981016), (76, 1068706), (82, 990508), (152, 534353), (164, 495254), (328, 247627), (779, 104264), (1558, 52132), (3116, 26066), (6232, 13033)]