641164160

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:249

約数の個数: 256

約数和(自身を含む): 1922659200

約数和(自身を除く): 1281495040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 101, 104, 109, 112, 128, 130, 140, 160, 182, 202, 208, 218, 224, 260, 280, 320, 364, 404, 416, 436, 448, 455, 505, 520, 545, 560, 640, 707, 728, 763, 808, 832, 872, 896, 910, 1010, 1040, 1090, 1120, 1313, 1414, 1417, 1456, 1526, 1616, 1664, 1744, 1820, 2020, 2080, 2180, 2240, 2626, 2828, 2834, 2912, 3052, 3232, 3488, 3535, 3640, 3815, 4040, 4160, 4360, 4480, 5252, 5656, 5668, 5824, 6104, 6464, 6565, 6976, 7070, 7085, 7280, 7630, 8080, 8320, 8720, 9191, 9919, 10504, 11009, 11312, 11336, 11648, 12208, 12928, 13130, 13952, 14140, 14170, 14560, 15260, 16160, 17440, 18382, 19838, 21008, 22018, 22624, 22672, 24416, 26260, 28280, 28340, 29120, 30520, 32320, 34880, 36764, 39676, 42016, 44036, 45248, 45344, 45955, 48832, 49595, 52520, 55045, 56560, 56680, 58240, 61040, 64640, 69760, 73528, 77063, 79352, 84032, 88072, 90496, 90688, 91910, 97664, 99190, 105040, 110090, 113120, 113360, 122080, 143117, 147056, 154126, 158704, 168064, 176144, 181376, 183820, 198380, 210080, 220180, 226240, 226720, 244160, 286234, 294112, 308252, 317408, 352288, 367640, 385315, 396760, 420160, 440360, 452480, 453440, 488320, 572468, 588224, 616504, 634816, 704576, 715585, 735280, 770630, 793520, 840320, 880720, 906880, 1001819, 1144936, 1176448, 1233008, 1269632, 1409152, 1431170, 1470560, 1541260, 1587040, 1761440, 2003638, 2289872, 2466016, 2862340, 2941120, 3082520, 3174080, 3522880, 4007276, 4579744, 4932032, 5009095, 5724680, 5882240, 6165040, 6348160, 7045760, 8014552, 9159488, 9864064, 10018190, 11449360, 12330080, 16029104, 18318976, 20036380, 22898720, 24660160, 32058208, 40072760, 45797440, 49320320, 64116416, 80145520, 91594880, 128232832, 160291040, 320582080, 641164160]

約数ペア:

[(1, 641164160), (2, 320582080), (4, 160291040), (5, 128232832), (7, 91594880), (8, 80145520), (10, 64116416), (13, 49320320), (14, 45797440), (16, 40072760), (20, 32058208), (26, 24660160), (28, 22898720), (32, 20036380), (35, 18318976), (40, 16029104), (52, 12330080), (56, 11449360), (64, 10018190), (65, 9864064), (70, 9159488), (80, 8014552), (91, 7045760), (101, 6348160), (104, 6165040), (109, 5882240), (112, 5724680), (128, 5009095), (130, 4932032), (140, 4579744), (160, 4007276), (182, 3522880), (202, 3174080), (208, 3082520), (218, 2941120), (224, 2862340), (260, 2466016), (280, 2289872), (320, 2003638), (364, 1761440), (404, 1587040), (416, 1541260), (436, 1470560), (448, 1431170), (455, 1409152), (505, 1269632), (520, 1233008), (545, 1176448), (560, 1144936), (640, 1001819), (707, 906880), (728, 880720), (763, 840320), (808, 793520), (832, 770630), (872, 735280), (896, 715585), (910, 704576), (1010, 634816), (1040, 616504), (1090, 588224), (1120, 572468), (1313, 488320), (1414, 453440), (1417, 452480), (1456, 440360), (1526, 420160), (1616, 396760), (1664, 385315), (1744, 367640), (1820, 352288), (2020, 317408), (2080, 308252), (2180, 294112), (2240, 286234), (2626, 244160), (2828, 226720), (2834, 226240), (2912, 220180), (3052, 210080), (3232, 198380), (3488, 183820), (3535, 181376), (3640, 176144), (3815, 168064), (4040, 158704), (4160, 154126), (4360, 147056), (4480, 143117), (5252, 122080), (5656, 113360), (5668, 113120), (5824, 110090), (6104, 105040), (6464, 99190), (6565, 97664), (6976, 91910), (7070, 90688), (7085, 90496), (7280, 88072), (7630, 84032), (8080, 79352), (8320, 77063), (8720, 73528), (9191, 69760), (9919, 64640), (10504, 61040), (11009, 58240), (11312, 56680), (11336, 56560), (11648, 55045), (12208, 52520), (12928, 49595), (13130, 48832), (13952, 45955), (14140, 45344), (14170, 45248), (14560, 44036), (15260, 42016), (16160, 39676), (17440, 36764), (18382, 34880), (19838, 32320), (21008, 30520), (22018, 29120), (22624, 28340), (22672, 28280), (24416, 26260)]