66551960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{38693}}^1$

素因数の和:38747

約数の個数: 32

約数和(自身を含む): 153228240

約数和(自身を除く): 86676280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 38693, 77386, 154772, 193465, 309544, 386930, 773860, 1547720, 1663799, 3327598, 6655196, 8318995, 13310392, 16637990, 33275980, 66551960]

約数ペア:

[(1, 66551960), (2, 33275980), (4, 16637990), (5, 13310392), (8, 8318995), (10, 6655196), (20, 3327598), (40, 1663799), (43, 1547720), (86, 773860), (172, 386930), (215, 309544), (344, 193465), (430, 154772), (860, 77386), (1720, 38693)]