61807280

素因数分解:

$2^4\times 5^1\times {\mathrm{772591}}^1$

素因数の和:772604

約数の個数: 20

約数和(自身を含む): 143702112

約数和(自身を除く): 81894832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 772591, 1545182, 3090364, 3862955, 6180728, 7725910, 12361456, 15451820, 30903640, 61807280]

約数ペア:

[(1, 61807280), (2, 30903640), (4, 15451820), (5, 12361456), (8, 7725910), (10, 6180728), (16, 3862955), (20, 3090364), (40, 1545182), (80, 772591)]