9942040

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1249}}^1$

素因数の和:1459

約数の個数: 32

約数和(自身を含む): 22500000

約数和(自身を除く): 12557960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1249, 1592, 1990, 2498, 3980, 4996, 6245, 7960, 9992, 12490, 24980, 49960, 248551, 497102, 994204, 1242755, 1988408, 2485510, 4971020, 9942040]

約数ペア:

[(1, 9942040), (2, 4971020), (4, 2485510), (5, 1988408), (8, 1242755), (10, 994204), (20, 497102), (40, 248551), (199, 49960), (398, 24980), (796, 12490), (995, 9992), (1249, 7960), (1592, 6245), (1990, 4996), (2498, 3980)]