81200008

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{881}}^1$

素因数の和:1209

約数の個数: 32

約数和(自身を含む): 156696120

約数和(自身を除く): 75496112

約数列:

[1, 2, 4, 8, 41, 82, 164, 281, 328, 562, 881, 1124, 1762, 2248, 3524, 7048, 11521, 23042, 36121, 46084, 72242, 92168, 144484, 247561, 288968, 495122, 990244, 1980488, 10150001, 20300002, 40600004, 81200008]

約数ペア:

[(1, 81200008), (2, 40600004), (4, 20300002), (8, 10150001), (41, 1980488), (82, 990244), (164, 495122), (281, 288968), (328, 247561), (562, 144484), (881, 92168), (1124, 72242), (1762, 46084), (2248, 36121), (3524, 23042), (7048, 11521)]