81061680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:204

約数の個数: 240

約数和(自身を含む): 299739744

約数和(自身を除く): 218678064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 61, 70, 80, 84, 98, 105, 112, 113, 120, 122, 140, 147, 168, 183, 196, 210, 226, 240, 244, 245, 280, 294, 305, 336, 339, 366, 392, 420, 427, 452, 488, 490, 560, 565, 588, 610, 678, 732, 735, 784, 791, 840, 854, 904, 915, 976, 980, 1130, 1176, 1220, 1281, 1356, 1464, 1470, 1582, 1680, 1695, 1708, 1808, 1830, 1960, 2135, 2260, 2352, 2373, 2440, 2562, 2712, 2928, 2940, 2989, 3164, 3390, 3416, 3660, 3920, 3955, 4270, 4520, 4746, 4880, 5124, 5424, 5537, 5880, 5978, 6328, 6405, 6780, 6832, 6893, 7320, 7910, 8540, 8967, 9040, 9492, 10248, 11074, 11760, 11865, 11956, 12656, 12810, 13560, 13786, 14640, 14945, 15820, 16611, 17080, 17934, 18984, 20496, 20679, 22148, 23730, 23912, 25620, 27120, 27572, 27685, 29890, 31640, 33222, 34160, 34465, 35868, 37968, 41358, 44296, 44835, 47460, 47824, 48251, 51240, 55144, 55370, 59780, 63280, 66444, 68930, 71736, 82716, 83055, 88592, 89670, 94920, 96502, 102480, 103395, 110288, 110740, 119560, 132888, 137860, 143472, 144753, 165432, 166110, 179340, 189840, 193004, 206790, 221480, 239120, 241255, 265776, 275720, 289506, 330864, 332220, 337757, 358680, 386008, 413580, 442960, 482510, 551440, 579012, 664440, 675514, 717360, 723765, 772016, 827160, 965020, 1013271, 1158024, 1328880, 1351028, 1447530, 1654320, 1688785, 1930040, 2026542, 2316048, 2702056, 2895060, 3377570, 3860080, 4053084, 5066355, 5404112, 5790120, 6755140, 8106168, 10132710, 11580240, 13510280, 16212336, 20265420, 27020560, 40530840, 81061680]

約数ペア:

[(1, 81061680), (2, 40530840), (3, 27020560), (4, 20265420), (5, 16212336), (6, 13510280), (7, 11580240), (8, 10132710), (10, 8106168), (12, 6755140), (14, 5790120), (15, 5404112), (16, 5066355), (20, 4053084), (21, 3860080), (24, 3377570), (28, 2895060), (30, 2702056), (35, 2316048), (40, 2026542), (42, 1930040), (48, 1688785), (49, 1654320), (56, 1447530), (60, 1351028), (61, 1328880), (70, 1158024), (80, 1013271), (84, 965020), (98, 827160), (105, 772016), (112, 723765), (113, 717360), (120, 675514), (122, 664440), (140, 579012), (147, 551440), (168, 482510), (183, 442960), (196, 413580), (210, 386008), (226, 358680), (240, 337757), (244, 332220), (245, 330864), (280, 289506), (294, 275720), (305, 265776), (336, 241255), (339, 239120), (366, 221480), (392, 206790), (420, 193004), (427, 189840), (452, 179340), (488, 166110), (490, 165432), (560, 144753), (565, 143472), (588, 137860), (610, 132888), (678, 119560), (732, 110740), (735, 110288), (784, 103395), (791, 102480), (840, 96502), (854, 94920), (904, 89670), (915, 88592), (976, 83055), (980, 82716), (1130, 71736), (1176, 68930), (1220, 66444), (1281, 63280), (1356, 59780), (1464, 55370), (1470, 55144), (1582, 51240), (1680, 48251), (1695, 47824), (1708, 47460), (1808, 44835), (1830, 44296), (1960, 41358), (2135, 37968), (2260, 35868), (2352, 34465), (2373, 34160), (2440, 33222), (2562, 31640), (2712, 29890), (2928, 27685), (2940, 27572), (2989, 27120), (3164, 25620), (3390, 23912), (3416, 23730), (3660, 22148), (3920, 20679), (3955, 20496), (4270, 18984), (4520, 17934), (4746, 17080), (4880, 16611), (5124, 15820), (5424, 14945), (5537, 14640), (5880, 13786), (5978, 13560), (6328, 12810), (6405, 12656), (6780, 11956), (6832, 11865), (6893, 11760), (7320, 11074), (7910, 10248), (8540, 9492), (8967, 9040)]