73887280

素因数分解:

$2^4\times 5^1\times {\mathrm{923591}}^1$

素因数の和:923604

約数の個数: 20

約数和(自身を含む): 171788112

約数和(自身を除く): 97900832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 923591, 1847182, 3694364, 4617955, 7388728, 9235910, 14777456, 18471820, 36943640, 73887280]

約数ペア:

[(1, 73887280), (2, 36943640), (4, 18471820), (5, 14777456), (8, 9235910), (10, 7388728), (16, 4617955), (20, 3694364), (40, 1847182), (80, 923591)]