128339520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3109}}^1$

素因数の和:3172

約数の個数: 112

約数和(自身を含む): 417088320

約数和(自身を除く): 288748800

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, 516, 645, 688, 860, 960, 1032, 1290, 1376, 1720, 2064, 2580, 2752, 3109, 3440, 4128, 5160, 6218, 6880, 8256, 9327, 10320, 12436, 13760, 15545, 18654, 20640, 24872, 31090, 37308, 41280, 46635, 49744, 62180, 74616, 93270, 99488, 124360, 133687, 149232, 186540, 198976, 248720, 267374, 298464, 373080, 401061, 497440, 534748, 596928, 668435, 746160, 802122, 994880, 1069496, 1336870, 1492320, 1604244, 2005305, 2138992, 2673740, 2984640, 3208488, 4010610, 4277984, 5347480, 6416976, 8021220, 8555968, 10694960, 12833952, 16042440, 21389920, 25667904, 32084880, 42779840, 64169760, 128339520]

約数ペア:

[(1, 128339520), (2, 64169760), (3, 42779840), (4, 32084880), (5, 25667904), (6, 21389920), (8, 16042440), (10, 12833952), (12, 10694960), (15, 8555968), (16, 8021220), (20, 6416976), (24, 5347480), (30, 4277984), (32, 4010610), (40, 3208488), (43, 2984640), (48, 2673740), (60, 2138992), (64, 2005305), (80, 1604244), (86, 1492320), (96, 1336870), (120, 1069496), (129, 994880), (160, 802122), (172, 746160), (192, 668435), (215, 596928), (240, 534748), (258, 497440), (320, 401061), (344, 373080), (430, 298464), (480, 267374), (516, 248720), (645, 198976), (688, 186540), (860, 149232), (960, 133687), (1032, 124360), (1290, 99488), (1376, 93270), (1720, 74616), (2064, 62180), (2580, 49744), (2752, 46635), (3109, 41280), (3440, 37308), (4128, 31090), (5160, 24872), (6218, 20640), (6880, 18654), (8256, 15545), (9327, 13760), (10320, 12436)]