19201920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 128

約数和(自身を含む): 62497440

約数和(自身を除く): 43295520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 73, 80, 96, 120, 128, 137, 146, 160, 192, 219, 240, 274, 292, 320, 365, 384, 411, 438, 480, 548, 584, 640, 685, 730, 822, 876, 960, 1095, 1096, 1168, 1370, 1460, 1644, 1752, 1920, 2055, 2190, 2192, 2336, 2740, 2920, 3288, 3504, 4110, 4380, 4384, 4672, 5480, 5840, 6576, 7008, 8220, 8760, 8768, 9344, 10001, 10960, 11680, 13152, 14016, 16440, 17520, 17536, 20002, 21920, 23360, 26304, 28032, 30003, 32880, 35040, 40004, 43840, 46720, 50005, 52608, 60006, 65760, 70080, 80008, 87680, 100010, 120012, 131520, 140160, 150015, 160016, 200020, 240024, 263040, 300030, 320032, 400040, 480048, 600060, 640064, 800080, 960096, 1200120, 1280128, 1600160, 1920192, 2400240, 3200320, 3840384, 4800480, 6400640, 9600960, 19201920]

約数ペア:

[(1, 19201920), (2, 9600960), (3, 6400640), (4, 4800480), (5, 3840384), (6, 3200320), (8, 2400240), (10, 1920192), (12, 1600160), (15, 1280128), (16, 1200120), (20, 960096), (24, 800080), (30, 640064), (32, 600060), (40, 480048), (48, 400040), (60, 320032), (64, 300030), (73, 263040), (80, 240024), (96, 200020), (120, 160016), (128, 150015), (137, 140160), (146, 131520), (160, 120012), (192, 100010), (219, 87680), (240, 80008), (274, 70080), (292, 65760), (320, 60006), (365, 52608), (384, 50005), (411, 46720), (438, 43840), (480, 40004), (548, 35040), (584, 32880), (640, 30003), (685, 28032), (730, 26304), (822, 23360), (876, 21920), (960, 20002), (1095, 17536), (1096, 17520), (1168, 16440), (1370, 14016), (1460, 13152), (1644, 11680), (1752, 10960), (1920, 10001), (2055, 9344), (2190, 8768), (2192, 8760), (2336, 8220), (2740, 7008), (2920, 6576), (3288, 5840), (3504, 5480), (4110, 4672), (4380, 4384)]