81867184

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:338

約数の個数: 80

約数和(自身を含む): 188559360

約数和(自身を除く): 106692176

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 89, 112, 172, 178, 191, 301, 344, 356, 382, 602, 623, 688, 712, 764, 1204, 1246, 1337, 1424, 1528, 2408, 2492, 2674, 3056, 3827, 4816, 4984, 5348, 7654, 8213, 9968, 10696, 15308, 16426, 16999, 21392, 26789, 30616, 32852, 33998, 53578, 57491, 61232, 65704, 67996, 107156, 114982, 118993, 131408, 135992, 214312, 229964, 237986, 271984, 428624, 459928, 475972, 730957, 919856, 951944, 1461914, 1903888, 2923828, 5116699, 5847656, 10233398, 11695312, 20466796, 40933592, 81867184]

約数ペア:

[(1, 81867184), (2, 40933592), (4, 20466796), (7, 11695312), (8, 10233398), (14, 5847656), (16, 5116699), (28, 2923828), (43, 1903888), (56, 1461914), (86, 951944), (89, 919856), (112, 730957), (172, 475972), (178, 459928), (191, 428624), (301, 271984), (344, 237986), (356, 229964), (382, 214312), (602, 135992), (623, 131408), (688, 118993), (712, 114982), (764, 107156), (1204, 67996), (1246, 65704), (1337, 61232), (1424, 57491), (1528, 53578), (2408, 33998), (2492, 32852), (2674, 30616), (3056, 26789), (3827, 21392), (4816, 16999), (4984, 16426), (5348, 15308), (7654, 10696), (8213, 9968)]