78144760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{45433}}^1$

素因数の和:45487

約数の個数: 32

約数和(自身を含む): 179918640

約数和(自身を除く): 101773880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 45433, 90866, 181732, 227165, 363464, 454330, 908660, 1817320, 1953619, 3907238, 7814476, 9768095, 15628952, 19536190, 39072380, 78144760]

約数ペア:

[(1, 78144760), (2, 39072380), (4, 19536190), (5, 15628952), (8, 9768095), (10, 7814476), (20, 3907238), (40, 1953619), (43, 1817320), (86, 908660), (172, 454330), (215, 363464), (344, 227165), (430, 181732), (860, 90866), (1720, 45433)]