81026900

素因数分解:

$2^2\times 5^2\times {\mathrm{810269}}^1$

素因数の和:810283

約数の個数: 18

約数和(自身を含む): 175828590

約数和(自身を除く): 94801690

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 810269, 1620538, 3241076, 4051345, 8102690, 16205380, 20256725, 40513450, 81026900]

約数ペア:

[(1, 81026900), (2, 40513450), (4, 20256725), (5, 16205380), (10, 8102690), (20, 4051345), (25, 3241076), (50, 1620538), (100, 810269)]