20430040

素因数分解:

$2^3\times 5^1\times {\mathrm{510751}}^1$

素因数の和:510762

約数の個数: 16

約数和(自身を含む): 45967680

約数和(自身を除く): 25537640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 510751, 1021502, 2043004, 2553755, 4086008, 5107510, 10215020, 20430040]

約数ペア:

[(1, 20430040), (2, 10215020), (4, 5107510), (5, 4086008), (8, 2553755), (10, 2043004), (20, 1021502), (40, 510751)]