15860120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9221}}^1$

素因数の和:9275

約数の個数: 32

約数和(自身を含む): 36519120

約数和(自身を除く): 20659000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9221, 18442, 36884, 46105, 73768, 92210, 184420, 368840, 396503, 793006, 1586012, 1982515, 3172024, 3965030, 7930060, 15860120]

約数ペア:

[(1, 15860120), (2, 7930060), (4, 3965030), (5, 3172024), (8, 1982515), (10, 1586012), (20, 793006), (40, 396503), (43, 368840), (86, 184420), (172, 92210), (215, 73768), (344, 46105), (430, 36884), (860, 18442), (1720, 9221)]