20678640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86161}}^1$

素因数の和:86177

約数の個数: 40

約数和(自身を含む): 64104528

約数和(自身を除く): 43425888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86161, 172322, 258483, 344644, 430805, 516966, 689288, 861610, 1033932, 1292415, 1378576, 1723220, 2067864, 2584830, 3446440, 4135728, 5169660, 6892880, 10339320, 20678640]

約数ペア:

[(1, 20678640), (2, 10339320), (3, 6892880), (4, 5169660), (5, 4135728), (6, 3446440), (8, 2584830), (10, 2067864), (12, 1723220), (15, 1378576), (16, 1292415), (20, 1033932), (24, 861610), (30, 689288), (40, 516966), (48, 430805), (60, 344644), (80, 258483), (120, 172322), (240, 86161)]