81205100

素因数分解:

$2^2\times 5^2\times {\mathrm{812051}}^1$

素因数の和:812065

約数の個数: 18

約数和(自身を含む): 176215284

約数和(自身を除く): 95010184

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 812051, 1624102, 3248204, 4060255, 8120510, 16241020, 20301275, 40602550, 81205100]

約数ペア:

[(1, 81205100), (2, 40602550), (4, 20301275), (5, 16241020), (10, 8120510), (20, 4060255), (25, 3248204), (50, 1624102), (100, 812051)]