21782256640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{233}}^1$

素因数の和:339

約数の個数: 264

約数和(自身を含む): 57077401680

約数和(自身を除く): 35295145040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 190, 233, 248, 256, 304, 310, 320, 380, 466, 496, 512, 589, 608, 620, 640, 760, 932, 961, 992, 1024, 1165, 1178, 1216, 1240, 1280, 1520, 1864, 1922, 1984, 2330, 2356, 2432, 2480, 2560, 2945, 3040, 3728, 3844, 3968, 4427, 4660, 4712, 4805, 4864, 4960, 5120, 5890, 6080, 7223, 7456, 7688, 7936, 8854, 9320, 9424, 9610, 9728, 9920, 11780, 12160, 14446, 14912, 15376, 15872, 17708, 18259, 18640, 18848, 19220, 19456, 19840, 22135, 23560, 24320, 28892, 29824, 30752, 31744, 35416, 36115, 36518, 37280, 37696, 38440, 39680, 44270, 47120, 48640, 57784, 59648, 61504, 70832, 72230, 73036, 74560, 75392, 76880, 79360, 88540, 91295, 94240, 97280, 115568, 119296, 123008, 137237, 141664, 144460, 146072, 149120, 150784, 153760, 158720, 177080, 182590, 188480, 223913, 231136, 238592, 246016, 274474, 283328, 288920, 292144, 298240, 301568, 307520, 354160, 365180, 376960, 447826, 462272, 492032, 548948, 566656, 577840, 584288, 596480, 603136, 615040, 686185, 708320, 730360, 753920, 895652, 924544, 984064, 1097896, 1119565, 1133312, 1155680, 1168576, 1192960, 1230080, 1372370, 1416640, 1460720, 1507840, 1791304, 1849088, 2195792, 2239130, 2266624, 2311360, 2337152, 2460160, 2744740, 2833280, 2921440, 3015680, 3582608, 3698176, 4254347, 4391584, 4478260, 4533248, 4622720, 4674304, 4920320, 5489480, 5666560, 5842880, 7165216, 7396352, 8508694, 8783168, 8956520, 9245440, 9348608, 10978960, 11333120, 11685760, 14330432, 17017388, 17566336, 17913040, 18490880, 18697216, 21271735, 21957920, 22666240, 23371520, 28660864, 34034776, 35132672, 35826080, 36981760, 42543470, 43915840, 46743040, 57321728, 68069552, 70265344, 71652160, 85086940, 87831680, 93486080, 114643456, 136139104, 140530688, 143304320, 170173880, 175663360, 229286912, 272278208, 286608640, 340347760, 351326720, 544556416, 573217280, 680695520, 702653440, 1089112832, 1146434560, 1361391040, 2178225664, 2722782080, 4356451328, 5445564160, 10891128320, 21782256640]

約数ペア:

[(1, 21782256640), (2, 10891128320), (4, 5445564160), (5, 4356451328), (8, 2722782080), (10, 2178225664), (16, 1361391040), (19, 1146434560), (20, 1089112832), (31, 702653440), (32, 680695520), (38, 573217280), (40, 544556416), (62, 351326720), (64, 340347760), (76, 286608640), (80, 272278208), (95, 229286912), (124, 175663360), (128, 170173880), (152, 143304320), (155, 140530688), (160, 136139104), (190, 114643456), (233, 93486080), (248, 87831680), (256, 85086940), (304, 71652160), (310, 70265344), (320, 68069552), (380, 57321728), (466, 46743040), (496, 43915840), (512, 42543470), (589, 36981760), (608, 35826080), (620, 35132672), (640, 34034776), (760, 28660864), (932, 23371520), (961, 22666240), (992, 21957920), (1024, 21271735), (1165, 18697216), (1178, 18490880), (1216, 17913040), (1240, 17566336), (1280, 17017388), (1520, 14330432), (1864, 11685760), (1922, 11333120), (1984, 10978960), (2330, 9348608), (2356, 9245440), (2432, 8956520), (2480, 8783168), (2560, 8508694), (2945, 7396352), (3040, 7165216), (3728, 5842880), (3844, 5666560), (3968, 5489480), (4427, 4920320), (4660, 4674304), (4712, 4622720), (4805, 4533248), (4864, 4478260), (4960, 4391584), (5120, 4254347), (5890, 3698176), (6080, 3582608), (7223, 3015680), (7456, 2921440), (7688, 2833280), (7936, 2744740), (8854, 2460160), (9320, 2337152), (9424, 2311360), (9610, 2266624), (9728, 2239130), (9920, 2195792), (11780, 1849088), (12160, 1791304), (14446, 1507840), (14912, 1460720), (15376, 1416640), (15872, 1372370), (17708, 1230080), (18259, 1192960), (18640, 1168576), (18848, 1155680), (19220, 1133312), (19456, 1119565), (19840, 1097896), (22135, 984064), (23560, 924544), (24320, 895652), (28892, 753920), (29824, 730360), (30752, 708320), (31744, 686185), (35416, 615040), (36115, 603136), (36518, 596480), (37280, 584288), (37696, 577840), (38440, 566656), (39680, 548948), (44270, 492032), (47120, 462272), (48640, 447826), (57784, 376960), (59648, 365180), (61504, 354160), (70832, 307520), (72230, 301568), (73036, 298240), (74560, 292144), (75392, 288920), (76880, 283328), (79360, 274474), (88540, 246016), (91295, 238592), (94240, 231136), (97280, 223913), (115568, 188480), (119296, 182590), (123008, 177080), (137237, 158720), (141664, 153760), (144460, 150784), (146072, 149120)]