78855740

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{19813}}^1$

素因数の和:20021

約数の個数: 24

約数和(自身を含む): 166437600

約数和(自身を除く): 87581860

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 19813, 39626, 79252, 99065, 198130, 396260, 3942787, 7885574, 15771148, 19713935, 39427870, 78855740]

約数ペア:

[(1, 78855740), (2, 39427870), (4, 19713935), (5, 15771148), (10, 7885574), (20, 3942787), (199, 396260), (398, 198130), (796, 99065), (995, 79252), (1990, 39626), (3980, 19813)]