205121645

素因数分解:

$5^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1\times {\mathrm{647}}^1$

素因数の和:1204

約数の個数: 16

約数和(自身を含む): 248676480

約数和(自身を除く): 43554835

約数列:

[1, 5, 163, 389, 647, 815, 1945, 3235, 63407, 105461, 251683, 317035, 527305, 1258415, 41024329, 205121645]

約数ペア:

[(1, 205121645), (5, 41024329), (163, 1258415), (389, 527305), (647, 317035), (815, 251683), (1945, 105461), (3235, 63407)]