20978627520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{30649}}^1$

素因数の和:30723

約数の個数: 224

約数和(自身を含む): 71747481600

約数和(自身を除く): 50768854080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 31, 32, 40, 46, 48, 60, 62, 64, 69, 80, 92, 93, 96, 115, 120, 124, 138, 155, 160, 184, 186, 192, 230, 240, 248, 276, 310, 320, 345, 368, 372, 460, 465, 480, 496, 552, 620, 690, 713, 736, 744, 920, 930, 960, 992, 1104, 1240, 1380, 1426, 1472, 1488, 1840, 1860, 1984, 2139, 2208, 2480, 2760, 2852, 2976, 3565, 3680, 3720, 4278, 4416, 4960, 5520, 5704, 5952, 7130, 7360, 7440, 8556, 9920, 10695, 11040, 11408, 14260, 14880, 17112, 21390, 22080, 22816, 28520, 29760, 30649, 34224, 42780, 45632, 57040, 61298, 68448, 85560, 91947, 114080, 122596, 136896, 153245, 171120, 183894, 228160, 245192, 306490, 342240, 367788, 459735, 490384, 612980, 684480, 704927, 735576, 919470, 950119, 980768, 1225960, 1409854, 1471152, 1838940, 1900238, 1961536, 2114781, 2451920, 2819708, 2850357, 2942304, 3524635, 3677880, 3800476, 4229562, 4750595, 4903840, 5639416, 5700714, 5884608, 7049270, 7355760, 7600952, 8459124, 9501190, 9807680, 10573905, 11278832, 11401428, 14098540, 14251785, 14711520, 15201904, 16918248, 19002380, 21147810, 21852737, 22557664, 22802856, 28197080, 28503570, 29423040, 30403808, 33836496, 38004760, 42295620, 43705474, 45115328, 45605712, 56394160, 57007140, 60807616, 65558211, 67672992, 76009520, 84591240, 87410948, 91211424, 109263685, 112788320, 114014280, 131116422, 135345984, 152019040, 169182480, 174821896, 182422848, 218527370, 225576640, 228028560, 262232844, 304038080, 327791055, 338364960, 349643792, 437054740, 456057120, 524465688, 655582110, 676729920, 699287584, 874109480, 912114240, 1048931376, 1311164220, 1398575168, 1748218960, 2097862752, 2622328440, 3496437920, 4195725504, 5244656880, 6992875840, 10489313760, 20978627520]

約数ペア:

[(1, 20978627520), (2, 10489313760), (3, 6992875840), (4, 5244656880), (5, 4195725504), (6, 3496437920), (8, 2622328440), (10, 2097862752), (12, 1748218960), (15, 1398575168), (16, 1311164220), (20, 1048931376), (23, 912114240), (24, 874109480), (30, 699287584), (31, 676729920), (32, 655582110), (40, 524465688), (46, 456057120), (48, 437054740), (60, 349643792), (62, 338364960), (64, 327791055), (69, 304038080), (80, 262232844), (92, 228028560), (93, 225576640), (96, 218527370), (115, 182422848), (120, 174821896), (124, 169182480), (138, 152019040), (155, 135345984), (160, 131116422), (184, 114014280), (186, 112788320), (192, 109263685), (230, 91211424), (240, 87410948), (248, 84591240), (276, 76009520), (310, 67672992), (320, 65558211), (345, 60807616), (368, 57007140), (372, 56394160), (460, 45605712), (465, 45115328), (480, 43705474), (496, 42295620), (552, 38004760), (620, 33836496), (690, 30403808), (713, 29423040), (736, 28503570), (744, 28197080), (920, 22802856), (930, 22557664), (960, 21852737), (992, 21147810), (1104, 19002380), (1240, 16918248), (1380, 15201904), (1426, 14711520), (1472, 14251785), (1488, 14098540), (1840, 11401428), (1860, 11278832), (1984, 10573905), (2139, 9807680), (2208, 9501190), (2480, 8459124), (2760, 7600952), (2852, 7355760), (2976, 7049270), (3565, 5884608), (3680, 5700714), (3720, 5639416), (4278, 4903840), (4416, 4750595), (4960, 4229562), (5520, 3800476), (5704, 3677880), (5952, 3524635), (7130, 2942304), (7360, 2850357), (7440, 2819708), (8556, 2451920), (9920, 2114781), (10695, 1961536), (11040, 1900238), (11408, 1838940), (14260, 1471152), (14880, 1409854), (17112, 1225960), (21390, 980768), (22080, 950119), (22816, 919470), (28520, 735576), (29760, 704927), (30649, 684480), (34224, 612980), (42780, 490384), (45632, 459735), (57040, 367788), (61298, 342240), (68448, 306490), (85560, 245192), (91947, 228160), (114080, 183894), (122596, 171120), (136896, 153245)]