20351040

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 224

約数和(自身を含む): 72420480

約数和(自身を除く): 52069440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 29, 30, 32, 34, 40, 43, 48, 51, 58, 60, 64, 68, 80, 85, 86, 87, 96, 102, 116, 120, 129, 136, 145, 160, 170, 172, 174, 192, 204, 215, 232, 240, 255, 258, 272, 290, 320, 340, 344, 348, 408, 430, 435, 464, 480, 493, 510, 516, 544, 580, 645, 680, 688, 696, 731, 816, 860, 870, 928, 960, 986, 1020, 1032, 1088, 1160, 1247, 1290, 1360, 1376, 1392, 1462, 1479, 1632, 1720, 1740, 1856, 1972, 2040, 2064, 2193, 2320, 2465, 2494, 2580, 2720, 2752, 2784, 2924, 2958, 3264, 3440, 3480, 3655, 3741, 3944, 4080, 4128, 4386, 4640, 4930, 4988, 5160, 5440, 5568, 5848, 5916, 6235, 6880, 6960, 7310, 7395, 7482, 7888, 8160, 8256, 8772, 9280, 9860, 9976, 10320, 10965, 11696, 11832, 12470, 13760, 13920, 14620, 14790, 14964, 15776, 16320, 17544, 18705, 19720, 19952, 20640, 21199, 21930, 23392, 23664, 24940, 27840, 29240, 29580, 29928, 31552, 35088, 37410, 39440, 39904, 41280, 42398, 43860, 46784, 47328, 49880, 58480, 59160, 59856, 63597, 70176, 74820, 78880, 79808, 84796, 87720, 94656, 99760, 105995, 116960, 118320, 119712, 127194, 140352, 149640, 157760, 169592, 175440, 199520, 211990, 233920, 236640, 239424, 254388, 299280, 317985, 339184, 350880, 399040, 423980, 473280, 508776, 598560, 635970, 678368, 701760, 847960, 1017552, 1197120, 1271940, 1356736, 1695920, 2035104, 2543880, 3391840, 4070208, 5087760, 6783680, 10175520, 20351040]

約数ペア:

[(1, 20351040), (2, 10175520), (3, 6783680), (4, 5087760), (5, 4070208), (6, 3391840), (8, 2543880), (10, 2035104), (12, 1695920), (15, 1356736), (16, 1271940), (17, 1197120), (20, 1017552), (24, 847960), (29, 701760), (30, 678368), (32, 635970), (34, 598560), (40, 508776), (43, 473280), (48, 423980), (51, 399040), (58, 350880), (60, 339184), (64, 317985), (68, 299280), (80, 254388), (85, 239424), (86, 236640), (87, 233920), (96, 211990), (102, 199520), (116, 175440), (120, 169592), (129, 157760), (136, 149640), (145, 140352), (160, 127194), (170, 119712), (172, 118320), (174, 116960), (192, 105995), (204, 99760), (215, 94656), (232, 87720), (240, 84796), (255, 79808), (258, 78880), (272, 74820), (290, 70176), (320, 63597), (340, 59856), (344, 59160), (348, 58480), (408, 49880), (430, 47328), (435, 46784), (464, 43860), (480, 42398), (493, 41280), (510, 39904), (516, 39440), (544, 37410), (580, 35088), (645, 31552), (680, 29928), (688, 29580), (696, 29240), (731, 27840), (816, 24940), (860, 23664), (870, 23392), (928, 21930), (960, 21199), (986, 20640), (1020, 19952), (1032, 19720), (1088, 18705), (1160, 17544), (1247, 16320), (1290, 15776), (1360, 14964), (1376, 14790), (1392, 14620), (1462, 13920), (1479, 13760), (1632, 12470), (1720, 11832), (1740, 11696), (1856, 10965), (1972, 10320), (2040, 9976), (2064, 9860), (2193, 9280), (2320, 8772), (2465, 8256), (2494, 8160), (2580, 7888), (2720, 7482), (2752, 7395), (2784, 7310), (2924, 6960), (2958, 6880), (3264, 6235), (3440, 5916), (3480, 5848), (3655, 5568), (3741, 5440), (3944, 5160), (4080, 4988), (4128, 4930), (4386, 4640)]