28715662100

素因数分解:

$2^2\times 5^2\times {\mathrm{1609}}^1\times {\mathrm{178469}}^1$

素因数の和:180092

約数の個数: 36

約数和(自身を含む): 62352063900

約数和(自身を除く): 33636401800

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1609, 3218, 6436, 8045, 16090, 32180, 40225, 80450, 160900, 178469, 356938, 713876, 892345, 1784690, 3569380, 4461725, 8923450, 17846900, 287156621, 574313242, 1148626484, 1435783105, 2871566210, 5743132420, 7178915525, 14357831050, 28715662100]

約数ペア:

[(1, 28715662100), (2, 14357831050), (4, 7178915525), (5, 5743132420), (10, 2871566210), (20, 1435783105), (25, 1148626484), (50, 574313242), (100, 287156621), (1609, 17846900), (3218, 8923450), (6436, 4461725), (8045, 3569380), (16090, 1784690), (32180, 892345), (40225, 713876), (80450, 356938), (160900, 178469)]