20512019960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11925593}}^1$

素因数の和:11925647

約数の個数: 32

約数和(自身を含む): 47225352240

約数和(自身を除く): 26713332280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11925593, 23851186, 47702372, 59627965, 95404744, 119255930, 238511860, 477023720, 512800499, 1025600998, 2051201996, 2564002495, 4102403992, 5128004990, 10256009980, 20512019960]

約数ペア:

[(1, 20512019960), (2, 10256009980), (4, 5128004990), (5, 4102403992), (8, 2564002495), (10, 2051201996), (20, 1025600998), (40, 512800499), (43, 477023720), (86, 238511860), (172, 119255930), (215, 95404744), (344, 59627965), (430, 47702372), (860, 23851186), (1720, 11925593)]