12341980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{443}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 29836800

約数和(自身を除く): 17494820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 443, 796, 886, 995, 1393, 1772, 1990, 2215, 2786, 3101, 3980, 4430, 5572, 6202, 6965, 8860, 12404, 13930, 15505, 27860, 31010, 62020, 88157, 176314, 352628, 440785, 617099, 881570, 1234198, 1763140, 2468396, 3085495, 6170990, 12341980]

約数ペア:

[(1, 12341980), (2, 6170990), (4, 3085495), (5, 2468396), (7, 1763140), (10, 1234198), (14, 881570), (20, 617099), (28, 440785), (35, 352628), (70, 176314), (140, 88157), (199, 62020), (398, 31010), (443, 27860), (796, 15505), (886, 13930), (995, 12404), (1393, 8860), (1772, 6965), (1990, 6202), (2215, 5572), (2786, 4430), (3101, 3980)]