208515290

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{150011}}^1$

素因数の和:150157

約数の個数: 16

約数和(自身を含む): 378030240

約数和(自身を除く): 169514950

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 150011, 300022, 750055, 1500110, 20851529, 41703058, 104257645, 208515290]

約数ペア:

[(1, 208515290), (2, 104257645), (5, 41703058), (10, 20851529), (139, 1500110), (278, 750055), (695, 300022), (1390, 150011)]