2013880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 5184000

約数和(自身を除く): 3170120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 199, 220, 230, 253, 398, 440, 460, 506, 796, 920, 995, 1012, 1265, 1592, 1990, 2024, 2189, 2530, 3980, 4378, 4577, 5060, 7960, 8756, 9154, 10120, 10945, 17512, 18308, 21890, 22885, 36616, 43780, 45770, 50347, 87560, 91540, 100694, 183080, 201388, 251735, 402776, 503470, 1006940, 2013880]

約数ペア:

[(1, 2013880), (2, 1006940), (4, 503470), (5, 402776), (8, 251735), (10, 201388), (11, 183080), (20, 100694), (22, 91540), (23, 87560), (40, 50347), (44, 45770), (46, 43780), (55, 36616), (88, 22885), (92, 21890), (110, 18308), (115, 17512), (184, 10945), (199, 10120), (220, 9154), (230, 8756), (253, 7960), (398, 5060), (440, 4577), (460, 4378), (506, 3980), (796, 2530), (920, 2189), (995, 2024), (1012, 1990), (1265, 1592)]