About the Number

12811680

12811679 ← → 12811681

2進数表記:110000110111110110100000

漢数字表記:千二百八十一万千六百八十

素因数分解:

2 5 × 3 2 × 5 1 × 7 1 × 31 1 × 41 1

素因数の和:100
約数の個数: 288
約数和(自身を含む): 52835328
約数和(自身を除く): 40023648

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 32, 35, 36, 40, 41, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 82, 84, 90, 93, 96, 105, 112, 120, 123, 124, 126, 140, 144, 155, 160, 164, 168, 180, 186, 205, 210, 217, 224, 240, 246, 248, 252, 279, 280, 287, 288, 310, 315, 328, 336, 360, 369, 372, 410, 420, 434, 465, 480, 492, 496, 504, 558, 560, 574, 615, 620, 630, 651, 656, 672, 720, 738, 744, 820, 840, 861, 868, 930, 984, 992, 1008, 1085, 1116, 1120, 1148, 1230, 1240, 1260, 1271, 1302, 1312, 1395, 1435, 1440, 1476, 1488, 1640, 1680, 1722, 1736, 1845, 1860, 1953, 1968, 2016, 2170, 2232, 2296, 2460, 2480, 2520, 2542, 2583, 2604, 2790, 2870, 2952, 2976, 3255, 3280, 3360, 3444, 3472, 3690, 3720, 3813, 3906, 3936, 4305, 4340, 4464, 4592, 4920, 4960, 5040, 5084, 5166, 5208, 5580, 5740, 5904, 6355, 6510, 6560, 6888, 6944, 7380, 7440, 7626, 7812, 8610, 8680, 8897, 8928, 9184, 9765, 9840, 10080, 10168, 10332, 10416, 11160, 11439, 11480, 11808, 12710, 12915, 13020, 13776, 14760, 14880, 15252, 15624, 17220, 17360, 17794, 19065, 19530, 19680, 20336, 20664, 20832, 22320, 22878, 22960, 25420, 25830, 26040, 26691, 27552, 29520, 30504, 31248, 34440, 34720, 35588, 38130, 39060, 40672, 41328, 44485, 44640, 45756, 45920, 50840, 51660, 52080, 53382, 57195, 59040, 61008, 62496, 68880, 71176, 76260, 78120, 80073, 82656, 88970, 91512, 101680, 103320, 104160, 106764, 114390, 122016, 133455, 137760, 142352, 152520, 156240, 160146, 177940, 183024, 203360, 206640, 213528, 228780, 266910, 284704, 305040, 312480, 320292, 355880, 366048, 400365, 413280, 427056, 457560, 533820, 610080, 640584, 711760, 800730, 854112, 915120, 1067640, 1281168, 1423520, 1601460, 1830240, 2135280, 2562336, 3202920, 4270560, 6405840, 12811680]

約数ペア:
[(1, 12811680), (2, 6405840), (3, 4270560), (4, 3202920), (5, 2562336), (6, 2135280), (7, 1830240), (8, 1601460), (9, 1423520), (10, 1281168), (12, 1067640), (14, 915120), (15, 854112), (16, 800730), (18, 711760), (20, 640584), (21, 610080), (24, 533820), (28, 457560), (30, 427056), (31, 413280), (32, 400365), (35, 366048), (36, 355880), (40, 320292), (41, 312480), (42, 305040), (45, 284704), (48, 266910), (56, 228780), (60, 213528), (62, 206640), (63, 203360), (70, 183024), (72, 177940), (80, 160146), (82, 156240), (84, 152520), (90, 142352), (93, 137760), (96, 133455), (105, 122016), (112, 114390), (120, 106764), (123, 104160), (124, 103320), (126, 101680), (140, 91512), (144, 88970), (155, 82656), (160, 80073), (164, 78120), (168, 76260), (180, 71176), (186, 68880), (205, 62496), (210, 61008), (217, 59040), (224, 57195), (240, 53382), (246, 52080), (248, 51660), (252, 50840), (279, 45920), (280, 45756), (287, 44640), (288, 44485), (310, 41328), (315, 40672), (328, 39060), (336, 38130), (360, 35588), (369, 34720), (372, 34440), (410, 31248), (420, 30504), (434, 29520), (465, 27552), (480, 26691), (492, 26040), (496, 25830), (504, 25420), (558, 22960), (560, 22878), (574, 22320), (615, 20832), (620, 20664), (630, 20336), (651, 19680), (656, 19530), (672, 19065), (720, 17794), (738, 17360), (744, 17220), (820, 15624), (840, 15252), (861, 14880), (868, 14760), (930, 13776), (984, 13020), (992, 12915), (1008, 12710), (1085, 11808), (1116, 11480), (1120, 11439), (1148, 11160), (1230, 10416), (1240, 10332), (1260, 10168), (1271, 10080), (1302, 9840), (1312, 9765), (1395, 9184), (1435, 8928), (1440, 8897), (1476, 8680), (1488, 8610), (1640, 7812), (1680, 7626), (1722, 7440), (1736, 7380), (1845, 6944), (1860, 6888), (1953, 6560), (1968, 6510), (2016, 6355), (2170, 5904), (2232, 5740), (2296, 5580), (2460, 5208), (2480, 5166), (2520, 5084), (2542, 5040), (2583, 4960), (2604, 4920), (2790, 4592), (2870, 4464), (2952, 4340), (2976, 4305), (3255, 3936), (3280, 3906), (3360, 3813), (3444, 3720), (3472, 3690)]

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