17941840

素因数分解:

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

素因数の和:249

約数の個数: 120

約数和(自身を含む): 50889600

約数和(自身を除く): 32947760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 199, 230, 245, 280, 322, 368, 392, 398, 460, 490, 560, 644, 784, 796, 805, 920, 980, 995, 1127, 1288, 1393, 1592, 1610, 1840, 1960, 1990, 2254, 2576, 2786, 3184, 3220, 3920, 3980, 4508, 4577, 5572, 5635, 6440, 6965, 7960, 9016, 9154, 9751, 11144, 11270, 12880, 13930, 15920, 18032, 18308, 19502, 22288, 22540, 22885, 27860, 32039, 36616, 39004, 45080, 45770, 48755, 55720, 64078, 73232, 78008, 90160, 91540, 97510, 111440, 128156, 156016, 160195, 183080, 195020, 224273, 256312, 320390, 366160, 390040, 448546, 512624, 640780, 780080, 897092, 1121365, 1281560, 1794184, 2242730, 2563120, 3588368, 4485460, 8970920, 17941840]

約数ペア:

[(1, 17941840), (2, 8970920), (4, 4485460), (5, 3588368), (7, 2563120), (8, 2242730), (10, 1794184), (14, 1281560), (16, 1121365), (20, 897092), (23, 780080), (28, 640780), (35, 512624), (40, 448546), (46, 390040), (49, 366160), (56, 320390), (70, 256312), (80, 224273), (92, 195020), (98, 183080), (112, 160195), (115, 156016), (140, 128156), (161, 111440), (184, 97510), (196, 91540), (199, 90160), (230, 78008), (245, 73232), (280, 64078), (322, 55720), (368, 48755), (392, 45770), (398, 45080), (460, 39004), (490, 36616), (560, 32039), (644, 27860), (784, 22885), (796, 22540), (805, 22288), (920, 19502), (980, 18308), (995, 18032), (1127, 15920), (1288, 13930), (1393, 12880), (1592, 11270), (1610, 11144), (1840, 9751), (1960, 9154), (1990, 9016), (2254, 7960), (2576, 6965), (2786, 6440), (3184, 5635), (3220, 5572), (3920, 4577), (3980, 4508)]