20759040

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:99

約数の個数: 240

約数和(自身を含む): 77559768

約数和(自身を除く): 56800728

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 53, 60, 64, 68, 72, 80, 85, 90, 96, 102, 106, 120, 128, 136, 144, 153, 159, 160, 170, 180, 192, 204, 212, 240, 255, 256, 265, 272, 288, 306, 318, 320, 340, 360, 384, 408, 424, 477, 480, 510, 512, 530, 544, 576, 612, 636, 640, 680, 720, 765, 768, 795, 816, 848, 901, 954, 960, 1020, 1060, 1088, 1152, 1224, 1272, 1280, 1360, 1440, 1530, 1536, 1590, 1632, 1696, 1802, 1908, 1920, 2040, 2120, 2176, 2304, 2385, 2448, 2544, 2560, 2703, 2720, 2880, 3060, 3180, 3264, 3392, 3604, 3816, 3840, 4080, 4240, 4352, 4505, 4608, 4770, 4896, 5088, 5406, 5440, 5760, 6120, 6360, 6528, 6784, 7208, 7632, 7680, 8109, 8160, 8480, 8704, 9010, 9540, 9792, 10176, 10812, 10880, 11520, 12240, 12720, 13056, 13515, 13568, 14416, 15264, 16218, 16320, 16960, 18020, 19080, 19584, 20352, 21624, 21760, 23040, 24480, 25440, 26112, 27030, 27136, 28832, 30528, 32436, 32640, 33920, 36040, 38160, 39168, 40545, 40704, 43248, 43520, 48960, 50880, 54060, 57664, 61056, 64872, 65280, 67840, 72080, 76320, 78336, 81090, 81408, 86496, 97920, 101760, 108120, 115328, 122112, 129744, 130560, 135680, 144160, 152640, 162180, 172992, 195840, 203520, 216240, 230656, 244224, 259488, 288320, 305280, 324360, 345984, 391680, 407040, 432480, 461312, 518976, 576640, 610560, 648720, 691968, 864960, 1037952, 1153280, 1221120, 1297440, 1383936, 1729920, 2075904, 2306560, 2594880, 3459840, 4151808, 5189760, 6919680, 10379520, 20759040]

約数ペア:

[(1, 20759040), (2, 10379520), (3, 6919680), (4, 5189760), (5, 4151808), (6, 3459840), (8, 2594880), (9, 2306560), (10, 2075904), (12, 1729920), (15, 1383936), (16, 1297440), (17, 1221120), (18, 1153280), (20, 1037952), (24, 864960), (30, 691968), (32, 648720), (34, 610560), (36, 576640), (40, 518976), (45, 461312), (48, 432480), (51, 407040), (53, 391680), (60, 345984), (64, 324360), (68, 305280), (72, 288320), (80, 259488), (85, 244224), (90, 230656), (96, 216240), (102, 203520), (106, 195840), (120, 172992), (128, 162180), (136, 152640), (144, 144160), (153, 135680), (159, 130560), (160, 129744), (170, 122112), (180, 115328), (192, 108120), (204, 101760), (212, 97920), (240, 86496), (255, 81408), (256, 81090), (265, 78336), (272, 76320), (288, 72080), (306, 67840), (318, 65280), (320, 64872), (340, 61056), (360, 57664), (384, 54060), (408, 50880), (424, 48960), (477, 43520), (480, 43248), (510, 40704), (512, 40545), (530, 39168), (544, 38160), (576, 36040), (612, 33920), (636, 32640), (640, 32436), (680, 30528), (720, 28832), (765, 27136), (768, 27030), (795, 26112), (816, 25440), (848, 24480), (901, 23040), (954, 21760), (960, 21624), (1020, 20352), (1060, 19584), (1088, 19080), (1152, 18020), (1224, 16960), (1272, 16320), (1280, 16218), (1360, 15264), (1440, 14416), (1530, 13568), (1536, 13515), (1590, 13056), (1632, 12720), (1696, 12240), (1802, 11520), (1908, 10880), (1920, 10812), (2040, 10176), (2120, 9792), (2176, 9540), (2304, 9010), (2385, 8704), (2448, 8480), (2544, 8160), (2560, 8109), (2703, 7680), (2720, 7632), (2880, 7208), (3060, 6784), (3180, 6528), (3264, 6360), (3392, 6120), (3604, 5760), (3816, 5440), (3840, 5406), (4080, 5088), (4240, 4896), (4352, 4770), (4505, 4608)]