8779880

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1103}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 19872000

約数和(自身を除く): 11092120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1103, 1592, 1990, 2206, 3980, 4412, 5515, 7960, 8824, 11030, 22060, 44120, 219497, 438994, 877988, 1097485, 1755976, 2194970, 4389940, 8779880]

約数ペア:

[(1, 8779880), (2, 4389940), (4, 2194970), (5, 1755976), (8, 1097485), (10, 877988), (20, 438994), (40, 219497), (199, 44120), (398, 22060), (796, 11030), (995, 8824), (1103, 7960), (1592, 5515), (1990, 4412), (2206, 3980)]