281223790

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1\times {\mathrm{997}}^1$

素因数の和:1492

約数の個数: 32

約数和(自身を含む): 515494944

約数和(自身を除く): 234271154

約数列:

[1, 2, 5, 10, 67, 134, 335, 421, 670, 842, 997, 1994, 2105, 4210, 4985, 9970, 28207, 56414, 66799, 133598, 141035, 282070, 333995, 419737, 667990, 839474, 2098685, 4197370, 28122379, 56244758, 140611895, 281223790]

約数ペア:

[(1, 281223790), (2, 140611895), (5, 56244758), (10, 28122379), (67, 4197370), (134, 2098685), (335, 839474), (421, 667990), (670, 419737), (842, 333995), (997, 282070), (1994, 141035), (2105, 133598), (4210, 66799), (4985, 56414), (9970, 28207)]