20403326720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{11443}}^1$

素因数の和:11670

約数の個数: 144

約数和(自身を含む): 56139686400

約数和(自身を除く): 35736359680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 199, 224, 256, 280, 320, 398, 448, 560, 640, 796, 896, 995, 1120, 1280, 1393, 1592, 1792, 1990, 2240, 2786, 3184, 3980, 4480, 5572, 6368, 6965, 7960, 8960, 11144, 11443, 12736, 13930, 15920, 22288, 22886, 25472, 27860, 31840, 44576, 45772, 50944, 55720, 57215, 63680, 80101, 89152, 91544, 111440, 114430, 127360, 160202, 178304, 183088, 222880, 228860, 254720, 320404, 356608, 366176, 400505, 445760, 457720, 640808, 732352, 801010, 891520, 915440, 1281616, 1464704, 1602020, 1783040, 1830880, 2277157, 2563232, 2929408, 3204040, 3661760, 4554314, 5126464, 6408080, 7323520, 9108628, 10252928, 11385785, 12816160, 14647040, 15940099, 18217256, 20505856, 22771570, 25632320, 31880198, 36434512, 45543140, 51264640, 63760396, 72869024, 79700495, 91086280, 102529280, 127520792, 145738048, 159400990, 182172560, 255041584, 291476096, 318801980, 364345120, 510083168, 582952192, 637603960, 728690240, 1020166336, 1275207920, 1457380480, 2040332672, 2550415840, 2914760960, 4080665344, 5100831680, 10201663360, 20403326720]

約数ペア:

[(1, 20403326720), (2, 10201663360), (4, 5100831680), (5, 4080665344), (7, 2914760960), (8, 2550415840), (10, 2040332672), (14, 1457380480), (16, 1275207920), (20, 1020166336), (28, 728690240), (32, 637603960), (35, 582952192), (40, 510083168), (56, 364345120), (64, 318801980), (70, 291476096), (80, 255041584), (112, 182172560), (128, 159400990), (140, 145738048), (160, 127520792), (199, 102529280), (224, 91086280), (256, 79700495), (280, 72869024), (320, 63760396), (398, 51264640), (448, 45543140), (560, 36434512), (640, 31880198), (796, 25632320), (896, 22771570), (995, 20505856), (1120, 18217256), (1280, 15940099), (1393, 14647040), (1592, 12816160), (1792, 11385785), (1990, 10252928), (2240, 9108628), (2786, 7323520), (3184, 6408080), (3980, 5126464), (4480, 4554314), (5572, 3661760), (6368, 3204040), (6965, 2929408), (7960, 2563232), (8960, 2277157), (11144, 1830880), (11443, 1783040), (12736, 1602020), (13930, 1464704), (15920, 1281616), (22288, 915440), (22886, 891520), (25472, 801010), (27860, 732352), (31840, 640808), (44576, 457720), (45772, 445760), (50944, 400505), (55720, 366176), (57215, 356608), (63680, 320404), (80101, 254720), (89152, 228860), (91544, 222880), (111440, 183088), (114430, 178304), (127360, 160202)]