8970920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:247

約数の個数: 96

約数和(自身を含む): 24624000

約数和(自身を除く): 15653080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 115, 140, 161, 184, 196, 199, 230, 245, 280, 322, 392, 398, 460, 490, 644, 796, 805, 920, 980, 995, 1127, 1288, 1393, 1592, 1610, 1960, 1990, 2254, 2786, 3220, 3980, 4508, 4577, 5572, 5635, 6440, 6965, 7960, 9016, 9154, 9751, 11144, 11270, 13930, 18308, 19502, 22540, 22885, 27860, 32039, 36616, 39004, 45080, 45770, 48755, 55720, 64078, 78008, 91540, 97510, 128156, 160195, 183080, 195020, 224273, 256312, 320390, 390040, 448546, 640780, 897092, 1121365, 1281560, 1794184, 2242730, 4485460, 8970920]

約数ペア:

[(1, 8970920), (2, 4485460), (4, 2242730), (5, 1794184), (7, 1281560), (8, 1121365), (10, 897092), (14, 640780), (20, 448546), (23, 390040), (28, 320390), (35, 256312), (40, 224273), (46, 195020), (49, 183080), (56, 160195), (70, 128156), (92, 97510), (98, 91540), (115, 78008), (140, 64078), (161, 55720), (184, 48755), (196, 45770), (199, 45080), (230, 39004), (245, 36616), (280, 32039), (322, 27860), (392, 22885), (398, 22540), (460, 19502), (490, 18308), (644, 13930), (796, 11270), (805, 11144), (920, 9751), (980, 9154), (995, 9016), (1127, 7960), (1288, 6965), (1393, 6440), (1592, 5635), (1610, 5572), (1960, 4577), (1990, 4508), (2254, 3980), (2786, 3220)]