247707940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{651863}}^1$

素因数の和:651891

約数の個数: 24

約数和(自身を含む): 547565760

約数和(自身を除く): 299857820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 651863, 1303726, 2607452, 3259315, 6518630, 12385397, 13037260, 24770794, 49541588, 61926985, 123853970, 247707940]

約数ペア:

[(1, 247707940), (2, 123853970), (4, 61926985), (5, 49541588), (10, 24770794), (19, 13037260), (20, 12385397), (38, 6518630), (76, 3259315), (95, 2607452), (190, 1303726), (380, 651863)]