20821637760

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{140839}}^1$

素因数の和:140879

約数の個数: 256

約数和(自身を含む): 82746316800

約数和(自身を除く): 61924679040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 55, 56, 60, 64, 66, 70, 77, 80, 84, 88, 96, 105, 110, 112, 120, 128, 132, 140, 154, 160, 165, 168, 176, 192, 210, 220, 224, 231, 240, 264, 280, 308, 320, 330, 336, 352, 384, 385, 420, 440, 448, 462, 480, 528, 560, 616, 640, 660, 672, 704, 770, 840, 880, 896, 924, 960, 1056, 1120, 1155, 1232, 1320, 1344, 1408, 1540, 1680, 1760, 1848, 1920, 2112, 2240, 2310, 2464, 2640, 2688, 3080, 3360, 3520, 3696, 4224, 4480, 4620, 4928, 5280, 6160, 6720, 7040, 7392, 9240, 9856, 10560, 12320, 13440, 14784, 18480, 21120, 24640, 29568, 36960, 49280, 73920, 140839, 147840, 281678, 422517, 563356, 704195, 845034, 985873, 1126712, 1408390, 1549229, 1690068, 1971746, 2112585, 2253424, 2816780, 2957619, 3098458, 3380136, 3943492, 4225170, 4506848, 4647687, 4929365, 5633560, 5915238, 6196916, 6760272, 7746145, 7886984, 8450340, 9013696, 9295374, 9858730, 10844603, 11267120, 11830476, 12393832, 13520544, 14788095, 15492290, 15773968, 16900680, 18027392, 18590748, 19717460, 21689206, 22534240, 23238435, 23660952, 24787664, 27041088, 29576190, 30984580, 31547936, 32533809, 33801360, 37181496, 39434920, 43378412, 45068480, 46476870, 47321904, 49575328, 54082176, 54223015, 59152380, 61969160, 63095872, 65067618, 67602720, 74362992, 78869840, 86756824, 90136960, 92953740, 94643808, 99150656, 108446030, 118304760, 123938320, 126191744, 130135236, 135205440, 148725984, 157739680, 162669045, 173513648, 185907480, 189287616, 198301312, 216892060, 236609520, 247876640, 260270472, 270410880, 297451968, 315479360, 325338090, 347027296, 371814960, 378575232, 433784120, 473219040, 495753280, 520540944, 594903936, 630958720, 650676180, 694054592, 743629920, 867568240, 946438080, 991506560, 1041081888, 1301352360, 1388109184, 1487259840, 1735136480, 1892876160, 2082163776, 2602704720, 2974519680, 3470272960, 4164327552, 5205409440, 6940545920, 10410818880, 20821637760]

約数ペア:

[(1, 20821637760), (2, 10410818880), (3, 6940545920), (4, 5205409440), (5, 4164327552), (6, 3470272960), (7, 2974519680), (8, 2602704720), (10, 2082163776), (11, 1892876160), (12, 1735136480), (14, 1487259840), (15, 1388109184), (16, 1301352360), (20, 1041081888), (21, 991506560), (22, 946438080), (24, 867568240), (28, 743629920), (30, 694054592), (32, 650676180), (33, 630958720), (35, 594903936), (40, 520540944), (42, 495753280), (44, 473219040), (48, 433784120), (55, 378575232), (56, 371814960), (60, 347027296), (64, 325338090), (66, 315479360), (70, 297451968), (77, 270410880), (80, 260270472), (84, 247876640), (88, 236609520), (96, 216892060), (105, 198301312), (110, 189287616), (112, 185907480), (120, 173513648), (128, 162669045), (132, 157739680), (140, 148725984), (154, 135205440), (160, 130135236), (165, 126191744), (168, 123938320), (176, 118304760), (192, 108446030), (210, 99150656), (220, 94643808), (224, 92953740), (231, 90136960), (240, 86756824), (264, 78869840), (280, 74362992), (308, 67602720), (320, 65067618), (330, 63095872), (336, 61969160), (352, 59152380), (384, 54223015), (385, 54082176), (420, 49575328), (440, 47321904), (448, 46476870), (462, 45068480), (480, 43378412), (528, 39434920), (560, 37181496), (616, 33801360), (640, 32533809), (660, 31547936), (672, 30984580), (704, 29576190), (770, 27041088), (840, 24787664), (880, 23660952), (896, 23238435), (924, 22534240), (960, 21689206), (1056, 19717460), (1120, 18590748), (1155, 18027392), (1232, 16900680), (1320, 15773968), (1344, 15492290), (1408, 14788095), (1540, 13520544), (1680, 12393832), (1760, 11830476), (1848, 11267120), (1920, 10844603), (2112, 9858730), (2240, 9295374), (2310, 9013696), (2464, 8450340), (2640, 7886984), (2688, 7746145), (3080, 6760272), (3360, 6196916), (3520, 5915238), (3696, 5633560), (4224, 4929365), (4480, 4647687), (4620, 4506848), (4928, 4225170), (5280, 3943492), (6160, 3380136), (6720, 3098458), (7040, 2957619), (7392, 2816780), (9240, 2253424), (9856, 2112585), (10560, 1971746), (12320, 1690068), (13440, 1549229), (14784, 1408390), (18480, 1126712), (21120, 985873), (24640, 845034), (29568, 704195), (36960, 563356), (49280, 422517), (73920, 281678), (140839, 147840)]