81877440

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:239

約数の個数: 224

約数和(自身を含む): 286390080

約数和(自身を除く): 204512640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 29, 30, 32, 34, 40, 48, 51, 58, 60, 64, 68, 80, 85, 87, 96, 102, 116, 120, 136, 145, 160, 170, 173, 174, 192, 204, 232, 240, 255, 272, 290, 320, 340, 346, 348, 408, 435, 464, 480, 493, 510, 519, 544, 580, 680, 692, 696, 816, 865, 870, 928, 960, 986, 1020, 1038, 1088, 1160, 1360, 1384, 1392, 1479, 1632, 1730, 1740, 1856, 1972, 2040, 2076, 2320, 2465, 2595, 2720, 2768, 2784, 2941, 2958, 3264, 3460, 3480, 3944, 4080, 4152, 4640, 4930, 5017, 5190, 5440, 5536, 5568, 5882, 5916, 6920, 6960, 7395, 7888, 8160, 8304, 8823, 9280, 9860, 10034, 10380, 11072, 11764, 11832, 13840, 13920, 14705, 14790, 15051, 15776, 16320, 16608, 17646, 19720, 20068, 20760, 23528, 23664, 25085, 27680, 27840, 29410, 29580, 30102, 31552, 33216, 35292, 39440, 40136, 41520, 44115, 47056, 47328, 50170, 55360, 58820, 59160, 60204, 70584, 75255, 78880, 80272, 83040, 85289, 88230, 94112, 94656, 100340, 117640, 118320, 120408, 141168, 150510, 157760, 160544, 166080, 170578, 176460, 188224, 200680, 235280, 236640, 240816, 255867, 282336, 301020, 321088, 341156, 352920, 401360, 426445, 470560, 473280, 481632, 511734, 564672, 602040, 682312, 705840, 802720, 852890, 941120, 963264, 1023468, 1204080, 1279335, 1364624, 1411680, 1605440, 1705780, 2046936, 2408160, 2558670, 2729248, 2823360, 3411560, 4093872, 4816320, 5117340, 5458496, 6823120, 8187744, 10234680, 13646240, 16375488, 20469360, 27292480, 40938720, 81877440]

約数ペア:

[(1, 81877440), (2, 40938720), (3, 27292480), (4, 20469360), (5, 16375488), (6, 13646240), (8, 10234680), (10, 8187744), (12, 6823120), (15, 5458496), (16, 5117340), (17, 4816320), (20, 4093872), (24, 3411560), (29, 2823360), (30, 2729248), (32, 2558670), (34, 2408160), (40, 2046936), (48, 1705780), (51, 1605440), (58, 1411680), (60, 1364624), (64, 1279335), (68, 1204080), (80, 1023468), (85, 963264), (87, 941120), (96, 852890), (102, 802720), (116, 705840), (120, 682312), (136, 602040), (145, 564672), (160, 511734), (170, 481632), (173, 473280), (174, 470560), (192, 426445), (204, 401360), (232, 352920), (240, 341156), (255, 321088), (272, 301020), (290, 282336), (320, 255867), (340, 240816), (346, 236640), (348, 235280), (408, 200680), (435, 188224), (464, 176460), (480, 170578), (493, 166080), (510, 160544), (519, 157760), (544, 150510), (580, 141168), (680, 120408), (692, 118320), (696, 117640), (816, 100340), (865, 94656), (870, 94112), (928, 88230), (960, 85289), (986, 83040), (1020, 80272), (1038, 78880), (1088, 75255), (1160, 70584), (1360, 60204), (1384, 59160), (1392, 58820), (1479, 55360), (1632, 50170), (1730, 47328), (1740, 47056), (1856, 44115), (1972, 41520), (2040, 40136), (2076, 39440), (2320, 35292), (2465, 33216), (2595, 31552), (2720, 30102), (2768, 29580), (2784, 29410), (2941, 27840), (2958, 27680), (3264, 25085), (3460, 23664), (3480, 23528), (3944, 20760), (4080, 20068), (4152, 19720), (4640, 17646), (4930, 16608), (5017, 16320), (5190, 15776), (5440, 15051), (5536, 14790), (5568, 14705), (5882, 13920), (5916, 13840), (6920, 11832), (6960, 11764), (7395, 11072), (7888, 10380), (8160, 10034), (8304, 9860), (8823, 9280)]