2563120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 7142400

約数和(自身を除く): 4579280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 199, 230, 280, 322, 368, 398, 460, 560, 644, 796, 805, 920, 995, 1288, 1393, 1592, 1610, 1840, 1990, 2576, 2786, 3184, 3220, 3980, 4577, 5572, 6440, 6965, 7960, 9154, 11144, 12880, 13930, 15920, 18308, 22288, 22885, 27860, 32039, 36616, 45770, 55720, 64078, 73232, 91540, 111440, 128156, 160195, 183080, 256312, 320390, 366160, 512624, 640780, 1281560, 2563120]

約数ペア:

[(1, 2563120), (2, 1281560), (4, 640780), (5, 512624), (7, 366160), (8, 320390), (10, 256312), (14, 183080), (16, 160195), (20, 128156), (23, 111440), (28, 91540), (35, 73232), (40, 64078), (46, 55720), (56, 45770), (70, 36616), (80, 32039), (92, 27860), (112, 22885), (115, 22288), (140, 18308), (161, 15920), (184, 13930), (199, 12880), (230, 11144), (280, 9154), (322, 7960), (368, 6965), (398, 6440), (460, 5572), (560, 4577), (644, 3980), (796, 3220), (805, 3184), (920, 2786), (995, 2576), (1288, 1990), (1393, 1840), (1592, 1610)]