890994640

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{55967}}^1$

素因数の和:56179

約数の個数: 40

約数和(自身を含む): 2082009600

約数和(自身を除く): 1191014960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 15920, 55967, 111934, 223868, 279835, 447736, 559670, 895472, 1119340, 2238680, 4477360, 11137433, 22274866, 44549732, 55687165, 89099464, 111374330, 178198928, 222748660, 445497320, 890994640]

約数ペア:

[(1, 890994640), (2, 445497320), (4, 222748660), (5, 178198928), (8, 111374330), (10, 89099464), (16, 55687165), (20, 44549732), (40, 22274866), (80, 11137433), (199, 4477360), (398, 2238680), (796, 1119340), (995, 895472), (1592, 559670), (1990, 447736), (3184, 279835), (3980, 223868), (7960, 111934), (15920, 55967)]