638897280

素因数分解:

$2^7\times 3^1\times 5^1\times 7^2\times {\mathrm{6791}}^1$

素因数の和:6827

約数の個数: 192

約数和(自身を含む): 2369321280

約数和(自身を除く): 1730424000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 384, 392, 420, 448, 480, 490, 560, 588, 640, 672, 735, 784, 840, 896, 960, 980, 1120, 1176, 1344, 1470, 1568, 1680, 1920, 1960, 2240, 2352, 2688, 2940, 3136, 3360, 3920, 4480, 4704, 5880, 6272, 6720, 6791, 7840, 9408, 11760, 13440, 13582, 15680, 18816, 20373, 23520, 27164, 31360, 33955, 40746, 47040, 47537, 54328, 67910, 81492, 94080, 95074, 101865, 108656, 135820, 142611, 162984, 190148, 203730, 217312, 237685, 271640, 285222, 325968, 332759, 380296, 407460, 434624, 475370, 543280, 570444, 651936, 665518, 713055, 760592, 814920, 869248, 950740, 998277, 1086560, 1140888, 1303872, 1331036, 1426110, 1521184, 1629840, 1663795, 1901480, 1996554, 2173120, 2281776, 2607744, 2662072, 2852220, 3042368, 3259680, 3327590, 3802960, 3993108, 4346240, 4563552, 4991385, 5324144, 5704440, 6084736, 6519360, 6655180, 7605920, 7986216, 9127104, 9982770, 10648288, 11408880, 13038720, 13310360, 15211840, 15972432, 18254208, 19965540, 21296576, 22817760, 26620720, 30423680, 31944864, 39931080, 42593152, 45635520, 53241440, 63889728, 79862160, 91271040, 106482880, 127779456, 159724320, 212965760, 319448640, 638897280]

約数ペア:

[(1, 638897280), (2, 319448640), (3, 212965760), (4, 159724320), (5, 127779456), (6, 106482880), (7, 91271040), (8, 79862160), (10, 63889728), (12, 53241440), (14, 45635520), (15, 42593152), (16, 39931080), (20, 31944864), (21, 30423680), (24, 26620720), (28, 22817760), (30, 21296576), (32, 19965540), (35, 18254208), (40, 15972432), (42, 15211840), (48, 13310360), (49, 13038720), (56, 11408880), (60, 10648288), (64, 9982770), (70, 9127104), (80, 7986216), (84, 7605920), (96, 6655180), (98, 6519360), (105, 6084736), (112, 5704440), (120, 5324144), (128, 4991385), (140, 4563552), (147, 4346240), (160, 3993108), (168, 3802960), (192, 3327590), (196, 3259680), (210, 3042368), (224, 2852220), (240, 2662072), (245, 2607744), (280, 2281776), (294, 2173120), (320, 1996554), (336, 1901480), (384, 1663795), (392, 1629840), (420, 1521184), (448, 1426110), (480, 1331036), (490, 1303872), (560, 1140888), (588, 1086560), (640, 998277), (672, 950740), (735, 869248), (784, 814920), (840, 760592), (896, 713055), (960, 665518), (980, 651936), (1120, 570444), (1176, 543280), (1344, 475370), (1470, 434624), (1568, 407460), (1680, 380296), (1920, 332759), (1960, 325968), (2240, 285222), (2352, 271640), (2688, 237685), (2940, 217312), (3136, 203730), (3360, 190148), (3920, 162984), (4480, 142611), (4704, 135820), (5880, 108656), (6272, 101865), (6720, 95074), (6791, 94080), (7840, 81492), (9408, 67910), (11760, 54328), (13440, 47537), (13582, 47040), (15680, 40746), (18816, 33955), (20373, 31360), (23520, 27164)]