28128325

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:741

約数の個数: 24

約数和(自身を含む): 36640512

約数和(自身を除く): 8512187

約数列:

[1, 5, 25, 37, 47, 185, 235, 647, 925, 1175, 1739, 3235, 8695, 16175, 23939, 30409, 43475, 119695, 152045, 598475, 760225, 1125133, 5625665, 28128325]

約数ペア:

[(1, 28128325), (5, 5625665), (25, 1125133), (37, 760225), (47, 598475), (185, 152045), (235, 119695), (647, 43475), (925, 30409), (1175, 23939), (1739, 16175), (3235, 8695)]