161844220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197371}}^1$

素因数の和:197421

約数の個数: 24

約数和(自身を含む): 348164208

約数和(自身を除く): 186319988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 197371, 394742, 789484, 986855, 1973710, 3947420, 8092211, 16184422, 32368844, 40461055, 80922110, 161844220]

約数ペア:

[(1, 161844220), (2, 80922110), (4, 40461055), (5, 32368844), (10, 16184422), (20, 8092211), (41, 3947420), (82, 1973710), (164, 986855), (205, 789484), (410, 394742), (820, 197371)]