9977860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 22176000

約数和(自身を除く): 12198140

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 199, 218, 230, 398, 436, 460, 545, 796, 995, 1090, 1990, 2180, 2507, 3980, 4577, 5014, 9154, 10028, 12535, 18308, 21691, 22885, 25070, 43382, 45770, 50140, 86764, 91540, 108455, 216910, 433820, 498893, 997786, 1995572, 2494465, 4988930, 9977860]

約数ペア:

[(1, 9977860), (2, 4988930), (4, 2494465), (5, 1995572), (10, 997786), (20, 498893), (23, 433820), (46, 216910), (92, 108455), (109, 91540), (115, 86764), (199, 50140), (218, 45770), (230, 43382), (398, 25070), (436, 22885), (460, 21691), (545, 18308), (796, 12535), (995, 10028), (1090, 9154), (1990, 5014), (2180, 4577), (2507, 3980)]