278323390

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{139861}}^1$

素因数の和:140067

約数の個数: 16

約数和(自身を含む): 503503200

約数和(自身を除く): 225179810

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 139861, 279722, 699305, 1398610, 27832339, 55664678, 139161695, 278323390]

約数ペア:

[(1, 278323390), (2, 139161695), (5, 55664678), (10, 27832339), (199, 1398610), (398, 699305), (995, 279722), (1990, 139861)]