20899568640

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31643}}^1$

素因数の和:31714

約数の個数: 176

約数和(自身を含む): 68402683008

約数和(自身を除く): 47503114368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 128, 129, 160, 172, 192, 215, 240, 256, 258, 320, 344, 384, 430, 480, 512, 516, 640, 645, 688, 768, 860, 960, 1024, 1032, 1280, 1290, 1376, 1536, 1720, 1920, 2064, 2560, 2580, 2752, 3072, 3440, 3840, 4128, 5120, 5160, 5504, 6880, 7680, 8256, 10320, 11008, 13760, 15360, 16512, 20640, 22016, 27520, 31643, 33024, 41280, 44032, 55040, 63286, 66048, 82560, 94929, 110080, 126572, 132096, 158215, 165120, 189858, 220160, 253144, 316430, 330240, 379716, 474645, 506288, 632860, 660480, 759432, 949290, 1012576, 1265720, 1360649, 1518864, 1898580, 2025152, 2531440, 2721298, 3037728, 3797160, 4050304, 4081947, 5062880, 5442596, 6075456, 6803245, 7594320, 8100608, 8163894, 10125760, 10885192, 12150912, 13606490, 15188640, 16201216, 16327788, 20251520, 20409735, 21770384, 24301824, 27212980, 30377280, 32402432, 32655576, 40503040, 40819470, 43540768, 48603648, 54425960, 60754560, 65311152, 81006080, 81638940, 87081536, 97207296, 108851920, 121509120, 130622304, 162012160, 163277880, 174163072, 217703840, 243018240, 261244608, 326555760, 348326144, 435407680, 486036480, 522489216, 653111520, 696652288, 870815360, 1044978432, 1306223040, 1393304576, 1741630720, 2089956864, 2612446080, 3483261440, 4179913728, 5224892160, 6966522880, 10449784320, 20899568640]

約数ペア:

[(1, 20899568640), (2, 10449784320), (3, 6966522880), (4, 5224892160), (5, 4179913728), (6, 3483261440), (8, 2612446080), (10, 2089956864), (12, 1741630720), (15, 1393304576), (16, 1306223040), (20, 1044978432), (24, 870815360), (30, 696652288), (32, 653111520), (40, 522489216), (43, 486036480), (48, 435407680), (60, 348326144), (64, 326555760), (80, 261244608), (86, 243018240), (96, 217703840), (120, 174163072), (128, 163277880), (129, 162012160), (160, 130622304), (172, 121509120), (192, 108851920), (215, 97207296), (240, 87081536), (256, 81638940), (258, 81006080), (320, 65311152), (344, 60754560), (384, 54425960), (430, 48603648), (480, 43540768), (512, 40819470), (516, 40503040), (640, 32655576), (645, 32402432), (688, 30377280), (768, 27212980), (860, 24301824), (960, 21770384), (1024, 20409735), (1032, 20251520), (1280, 16327788), (1290, 16201216), (1376, 15188640), (1536, 13606490), (1720, 12150912), (1920, 10885192), (2064, 10125760), (2560, 8163894), (2580, 8100608), (2752, 7594320), (3072, 6803245), (3440, 6075456), (3840, 5442596), (4128, 5062880), (5120, 4081947), (5160, 4050304), (5504, 3797160), (6880, 3037728), (7680, 2721298), (8256, 2531440), (10320, 2025152), (11008, 1898580), (13760, 1518864), (15360, 1360649), (16512, 1265720), (20640, 1012576), (22016, 949290), (27520, 759432), (31643, 660480), (33024, 632860), (41280, 506288), (44032, 474645), (55040, 379716), (63286, 330240), (66048, 316430), (82560, 253144), (94929, 220160), (110080, 189858), (126572, 165120), (132096, 158215)]