81384982

素因数分解:

$2^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 152064000

約数和(自身を除く): 70679018

約数列:

[1, 2, 7, 14, 31, 43, 49, 62, 86, 89, 98, 178, 217, 301, 343, 434, 602, 623, 686, 1246, 1333, 1519, 2107, 2666, 2759, 3038, 3827, 4214, 4361, 5518, 7654, 8722, 9331, 10633, 14749, 18662, 19313, 21266, 26789, 29498, 30527, 38626, 53578, 61054, 65317, 118637, 130634, 135191, 187523, 237274, 270382, 375046, 457219, 830459, 914438, 946337, 1312661, 1660918, 1892674, 2625322, 5813213, 11626426, 40692491, 81384982]

約数ペア:

[(1, 81384982), (2, 40692491), (7, 11626426), (14, 5813213), (31, 2625322), (43, 1892674), (49, 1660918), (62, 1312661), (86, 946337), (89, 914438), (98, 830459), (178, 457219), (217, 375046), (301, 270382), (343, 237274), (434, 187523), (602, 135191), (623, 130634), (686, 118637), (1246, 65317), (1333, 61054), (1519, 53578), (2107, 38626), (2666, 30527), (2759, 29498), (3038, 26789), (3827, 21266), (4214, 19313), (4361, 18662), (5518, 14749), (7654, 10633), (8722, 9331)]