20763840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:566

約数の個数: 112

約数和(自身を含む): 67592448

約数和(自身を除く): 46828608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 129, 160, 172, 192, 215, 240, 258, 320, 344, 430, 480, 503, 516, 645, 688, 860, 960, 1006, 1032, 1290, 1376, 1509, 1720, 2012, 2064, 2515, 2580, 2752, 3018, 3440, 4024, 4128, 5030, 5160, 6036, 6880, 7545, 8048, 8256, 10060, 10320, 12072, 13760, 15090, 16096, 20120, 20640, 21629, 24144, 30180, 32192, 40240, 41280, 43258, 48288, 60360, 64887, 80480, 86516, 96576, 108145, 120720, 129774, 160960, 173032, 216290, 241440, 259548, 324435, 346064, 432580, 482880, 519096, 648870, 692128, 865160, 1038192, 1297740, 1384256, 1730320, 2076384, 2595480, 3460640, 4152768, 5190960, 6921280, 10381920, 20763840]

約数ペア:

[(1, 20763840), (2, 10381920), (3, 6921280), (4, 5190960), (5, 4152768), (6, 3460640), (8, 2595480), (10, 2076384), (12, 1730320), (15, 1384256), (16, 1297740), (20, 1038192), (24, 865160), (30, 692128), (32, 648870), (40, 519096), (43, 482880), (48, 432580), (60, 346064), (64, 324435), (80, 259548), (86, 241440), (96, 216290), (120, 173032), (129, 160960), (160, 129774), (172, 120720), (192, 108145), (215, 96576), (240, 86516), (258, 80480), (320, 64887), (344, 60360), (430, 48288), (480, 43258), (503, 41280), (516, 40240), (645, 32192), (688, 30180), (860, 24144), (960, 21629), (1006, 20640), (1032, 20120), (1290, 16096), (1376, 15090), (1509, 13760), (1720, 12072), (2012, 10320), (2064, 10060), (2515, 8256), (2580, 8048), (2752, 7545), (3018, 6880), (3440, 6036), (4024, 5160), (4128, 5030)]