15801640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9187}}^1$

素因数の和:9241

約数の個数: 32

約数和(自身を含む): 36384480

約数和(自身を除く): 20582840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9187, 18374, 36748, 45935, 73496, 91870, 183740, 367480, 395041, 790082, 1580164, 1975205, 3160328, 3950410, 7900820, 15801640]

約数ペア:

[(1, 15801640), (2, 7900820), (4, 3950410), (5, 3160328), (8, 1975205), (10, 1580164), (20, 790082), (40, 395041), (43, 367480), (86, 183740), (172, 91870), (215, 73496), (344, 45935), (430, 36748), (860, 18374), (1720, 9187)]