8140120

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1867}}^1$

素因数の和:1987

約数の個数: 32

約数和(自身を含む): 18493200

約数和(自身を除く): 10353080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 1867, 2180, 3734, 4360, 7468, 9335, 14936, 18670, 37340, 74680, 203503, 407006, 814012, 1017515, 1628024, 2035030, 4070060, 8140120]

約数ペア:

[(1, 8140120), (2, 4070060), (4, 2035030), (5, 1628024), (8, 1017515), (10, 814012), (20, 407006), (40, 203503), (109, 74680), (218, 37340), (436, 18670), (545, 14936), (872, 9335), (1090, 7468), (1867, 4360), (2180, 3734)]