12743080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:730

約数の個数: 64

約数和(自身を含む): 33281280

約数和(自身を除く): 20538200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 641, 710, 994, 1282, 1420, 1988, 2485, 2564, 2840, 3205, 3976, 4487, 4970, 5128, 6410, 8974, 9940, 12820, 17948, 19880, 22435, 25640, 35896, 44870, 45511, 89740, 91022, 179480, 182044, 227555, 318577, 364088, 455110, 637154, 910220, 1274308, 1592885, 1820440, 2548616, 3185770, 6371540, 12743080]

約数ペア:

[(1, 12743080), (2, 6371540), (4, 3185770), (5, 2548616), (7, 1820440), (8, 1592885), (10, 1274308), (14, 910220), (20, 637154), (28, 455110), (35, 364088), (40, 318577), (56, 227555), (70, 182044), (71, 179480), (140, 91022), (142, 89740), (280, 45511), (284, 44870), (355, 35896), (497, 25640), (568, 22435), (641, 19880), (710, 17948), (994, 12820), (1282, 9940), (1420, 8974), (1988, 6410), (2485, 5128), (2564, 4970), (2840, 4487), (3205, 3976)]