81937884

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15991}}^1$

素因数の和:16066

約数の個数: 48

約数和(自身を含む): 222096896

約数和(自身を除く): 140159012

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 61, 84, 122, 183, 244, 366, 427, 732, 854, 1281, 1708, 2562, 5124, 15991, 31982, 47973, 63964, 95946, 111937, 191892, 223874, 335811, 447748, 671622, 975451, 1343244, 1950902, 2926353, 3901804, 5852706, 6828157, 11705412, 13656314, 20484471, 27312628, 40968942, 81937884]

約数ペア:

[(1, 81937884), (2, 40968942), (3, 27312628), (4, 20484471), (6, 13656314), (7, 11705412), (12, 6828157), (14, 5852706), (21, 3901804), (28, 2926353), (42, 1950902), (61, 1343244), (84, 975451), (122, 671622), (183, 447748), (244, 335811), (366, 223874), (427, 191892), (732, 111937), (854, 95946), (1281, 63964), (1708, 47973), (2562, 31982), (5124, 15991)]