54998889640

素因数分解:

$2^3\times 5^1\times {\mathrm{1374972241}}^1$

素因数の和:1374972252

約数の個数: 16

約数和(自身を含む): 123747501780

約数和(自身を除く): 68748612140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1374972241, 2749944482, 5499888964, 6874861205, 10999777928, 13749722410, 27499444820, 54998889640]

約数ペア:

[(1, 54998889640), (2, 27499444820), (4, 13749722410), (5, 10999777928), (8, 6874861205), (10, 5499888964), (20, 2749944482), (40, 1374972241)]