64460080

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4049}}^1$

素因数の和:4261

約数の個数: 40

約数和(自身を含む): 150660000

約数和(自身を除く): 86199920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 4049, 7960, 8098, 15920, 16196, 20245, 32392, 40490, 64784, 80980, 161960, 323920, 805751, 1611502, 3223004, 4028755, 6446008, 8057510, 12892016, 16115020, 32230040, 64460080]

約数ペア:

[(1, 64460080), (2, 32230040), (4, 16115020), (5, 12892016), (8, 8057510), (10, 6446008), (16, 4028755), (20, 3223004), (40, 1611502), (80, 805751), (199, 323920), (398, 161960), (796, 80980), (995, 64784), (1592, 40490), (1990, 32392), (3184, 20245), (3980, 16196), (4049, 15920), (7960, 8098)]