289505990

素因数分解:

$2^1\times 5^1\times {\mathrm{701}}^1\times {\mathrm{41299}}^1$

素因数の和:42007

約数の個数: 16

約数和(自身を含む): 521866800

約数和(自身を除く): 232360810

約数列:

[1, 2, 5, 10, 701, 1402, 3505, 7010, 41299, 82598, 206495, 412990, 28950599, 57901198, 144752995, 289505990]

約数ペア:

[(1, 289505990), (2, 144752995), (5, 57901198), (10, 28950599), (701, 412990), (1402, 206495), (3505, 82598), (7010, 41299)]