4971020

素因数分解:

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

素因数の和:1457

約数の個数: 24

約数和(自身を含む): 10500000

約数和(自身を除く): 5528980

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1249, 1990, 2498, 3980, 4996, 6245, 12490, 24980, 248551, 497102, 994204, 1242755, 2485510, 4971020]

約数ペア:

[(1, 4971020), (2, 2485510), (4, 1242755), (5, 994204), (10, 497102), (20, 248551), (199, 24980), (398, 12490), (796, 6245), (995, 4996), (1249, 3980), (1990, 2498)]