19613440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1$

素因数の和:238

約数の個数: 144

約数和(自身を含む): 58867200

約数和(自身を除く): 39253760

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 199, 220, 224, 256, 280, 308, 320, 352, 385, 398, 440, 448, 560, 616, 640, 704, 770, 796, 880, 896, 995, 1120, 1232, 1280, 1393, 1408, 1540, 1592, 1760, 1792, 1990, 2189, 2240, 2464, 2786, 2816, 3080, 3184, 3520, 3980, 4378, 4480, 4928, 5572, 6160, 6368, 6965, 7040, 7960, 8756, 8960, 9856, 10945, 11144, 12320, 12736, 13930, 14080, 15323, 15920, 17512, 19712, 21890, 22288, 24640, 25472, 27860, 30646, 31840, 35024, 43780, 44576, 49280, 50944, 55720, 61292, 63680, 70048, 76615, 87560, 89152, 98560, 111440, 122584, 127360, 140096, 153230, 175120, 178304, 222880, 245168, 254720, 280192, 306460, 350240, 356608, 445760, 490336, 560384, 612920, 700480, 891520, 980672, 1225840, 1400960, 1783040, 1961344, 2451680, 2801920, 3922688, 4903360, 9806720, 19613440]

約数ペア:

[(1, 19613440), (2, 9806720), (4, 4903360), (5, 3922688), (7, 2801920), (8, 2451680), (10, 1961344), (11, 1783040), (14, 1400960), (16, 1225840), (20, 980672), (22, 891520), (28, 700480), (32, 612920), (35, 560384), (40, 490336), (44, 445760), (55, 356608), (56, 350240), (64, 306460), (70, 280192), (77, 254720), (80, 245168), (88, 222880), (110, 178304), (112, 175120), (128, 153230), (140, 140096), (154, 127360), (160, 122584), (176, 111440), (199, 98560), (220, 89152), (224, 87560), (256, 76615), (280, 70048), (308, 63680), (320, 61292), (352, 55720), (385, 50944), (398, 49280), (440, 44576), (448, 43780), (560, 35024), (616, 31840), (640, 30646), (704, 27860), (770, 25472), (796, 24640), (880, 22288), (896, 21890), (995, 19712), (1120, 17512), (1232, 15920), (1280, 15323), (1393, 14080), (1408, 13930), (1540, 12736), (1592, 12320), (1760, 11144), (1792, 10945), (1990, 9856), (2189, 8960), (2240, 8756), (2464, 7960), (2786, 7040), (2816, 6965), (3080, 6368), (3184, 6160), (3520, 5572), (3980, 4928), (4378, 4480)]