55839640

素因数分解:

$2^3\times 5^1\times {\mathrm{1395991}}^1$

素因数の和:1396002

約数の個数: 16

約数和(自身を含む): 125639280

約数和(自身を除く): 69799640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1395991, 2791982, 5583964, 6979955, 11167928, 13959910, 27919820, 55839640]

約数ペア:

[(1, 55839640), (2, 27919820), (4, 13959910), (5, 11167928), (8, 6979955), (10, 5583964), (20, 2791982), (40, 1395991)]