81568144

素因数分解:

$2^4\times 7^3\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:285

約数の個数: 80

約数和(自身を含む): 187488000

約数和(自身を除く): 105919856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 89, 98, 112, 167, 178, 196, 334, 343, 356, 392, 623, 668, 686, 712, 784, 1169, 1246, 1336, 1372, 1424, 2338, 2492, 2672, 2744, 4361, 4676, 4984, 5488, 8183, 8722, 9352, 9968, 14863, 16366, 17444, 18704, 29726, 30527, 32732, 34888, 57281, 59452, 61054, 65464, 69776, 104041, 114562, 118904, 122108, 130928, 208082, 229124, 237808, 244216, 416164, 458248, 488432, 728287, 832328, 916496, 1456574, 1664656, 2913148, 5098009, 5826296, 10196018, 11652592, 20392036, 40784072, 81568144]

約数ペア:

[(1, 81568144), (2, 40784072), (4, 20392036), (7, 11652592), (8, 10196018), (14, 5826296), (16, 5098009), (28, 2913148), (49, 1664656), (56, 1456574), (89, 916496), (98, 832328), (112, 728287), (167, 488432), (178, 458248), (196, 416164), (334, 244216), (343, 237808), (356, 229124), (392, 208082), (623, 130928), (668, 122108), (686, 118904), (712, 114562), (784, 104041), (1169, 69776), (1246, 65464), (1336, 61054), (1372, 59452), (1424, 57281), (2338, 34888), (2492, 32732), (2672, 30527), (2744, 29726), (4361, 18704), (4676, 17444), (4984, 16366), (5488, 14863), (8183, 9968), (8722, 9352)]