129920640

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:610

約数の個数: 128

約数和(自身を含む): 417726720

約数和(自身を除く): 287806080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 157, 160, 192, 240, 314, 320, 384, 431, 471, 480, 628, 640, 785, 862, 942, 960, 1256, 1293, 1570, 1724, 1884, 1920, 2155, 2355, 2512, 2586, 3140, 3448, 3768, 4310, 4710, 5024, 5172, 6280, 6465, 6896, 7536, 8620, 9420, 10048, 10344, 12560, 12930, 13792, 15072, 17240, 18840, 20096, 20688, 25120, 25860, 27584, 30144, 34480, 37680, 41376, 50240, 51720, 55168, 60288, 67667, 68960, 75360, 82752, 100480, 103440, 135334, 137920, 150720, 165504, 203001, 206880, 270668, 275840, 301440, 338335, 406002, 413760, 541336, 676670, 812004, 827520, 1015005, 1082672, 1353340, 1624008, 2030010, 2165344, 2706680, 3248016, 4060020, 4330688, 5413360, 6496032, 8120040, 8661376, 10826720, 12992064, 16240080, 21653440, 25984128, 32480160, 43306880, 64960320, 129920640]

約数ペア:

[(1, 129920640), (2, 64960320), (3, 43306880), (4, 32480160), (5, 25984128), (6, 21653440), (8, 16240080), (10, 12992064), (12, 10826720), (15, 8661376), (16, 8120040), (20, 6496032), (24, 5413360), (30, 4330688), (32, 4060020), (40, 3248016), (48, 2706680), (60, 2165344), (64, 2030010), (80, 1624008), (96, 1353340), (120, 1082672), (128, 1015005), (157, 827520), (160, 812004), (192, 676670), (240, 541336), (314, 413760), (320, 406002), (384, 338335), (431, 301440), (471, 275840), (480, 270668), (628, 206880), (640, 203001), (785, 165504), (862, 150720), (942, 137920), (960, 135334), (1256, 103440), (1293, 100480), (1570, 82752), (1724, 75360), (1884, 68960), (1920, 67667), (2155, 60288), (2355, 55168), (2512, 51720), (2586, 50240), (3140, 41376), (3448, 37680), (3768, 34480), (4310, 30144), (4710, 27584), (5024, 25860), (5172, 25120), (6280, 20688), (6465, 20096), (6896, 18840), (7536, 17240), (8620, 15072), (9420, 13792), (10048, 12930), (10344, 12560)]