998889280

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{164291}}^1$

素因数の和:164327

約数の個数: 56

約数和(自身を含む): 2503810080

約数和(自身を除く): 1504920800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 164291, 328582, 657164, 821455, 1314328, 1642910, 2628656, 3121529, 3285820, 5257312, 6243058, 6571640, 10514624, 12486116, 13143280, 15607645, 24972232, 26286560, 31215290, 49944464, 52573120, 62430580, 99888928, 124861160, 199777856, 249722320, 499444640, 998889280]

約数ペア:

[(1, 998889280), (2, 499444640), (4, 249722320), (5, 199777856), (8, 124861160), (10, 99888928), (16, 62430580), (19, 52573120), (20, 49944464), (32, 31215290), (38, 26286560), (40, 24972232), (64, 15607645), (76, 13143280), (80, 12486116), (95, 10514624), (152, 6571640), (160, 6243058), (190, 5257312), (304, 3285820), (320, 3121529), (380, 2628656), (608, 1642910), (760, 1314328), (1216, 821455), (1520, 657164), (3040, 328582), (6080, 164291)]