12961920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 128

約数和(自身を含む): 42546240

約数和(自身を除く): 29584320

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, 128, 129, 157, 160, 172, 192, 215, 240, 258, 314, 320, 344, 384, 430, 471, 480, 516, 628, 640, 645, 688, 785, 860, 942, 960, 1032, 1256, 1290, 1376, 1570, 1720, 1884, 1920, 2064, 2355, 2512, 2580, 2752, 3140, 3440, 3768, 4128, 4710, 5024, 5160, 5504, 6280, 6751, 6880, 7536, 8256, 9420, 10048, 10320, 12560, 13502, 13760, 15072, 16512, 18840, 20096, 20253, 20640, 25120, 27004, 27520, 30144, 33755, 37680, 40506, 41280, 50240, 54008, 60288, 67510, 75360, 81012, 82560, 100480, 101265, 108016, 135020, 150720, 162024, 202530, 216032, 270040, 301440, 324048, 405060, 432064, 540080, 648096, 810120, 864128, 1080160, 1296192, 1620240, 2160320, 2592384, 3240480, 4320640, 6480960, 12961920]

約数ペア:

[(1, 12961920), (2, 6480960), (3, 4320640), (4, 3240480), (5, 2592384), (6, 2160320), (8, 1620240), (10, 1296192), (12, 1080160), (15, 864128), (16, 810120), (20, 648096), (24, 540080), (30, 432064), (32, 405060), (40, 324048), (43, 301440), (48, 270040), (60, 216032), (64, 202530), (80, 162024), (86, 150720), (96, 135020), (120, 108016), (128, 101265), (129, 100480), (157, 82560), (160, 81012), (172, 75360), (192, 67510), (215, 60288), (240, 54008), (258, 50240), (314, 41280), (320, 40506), (344, 37680), (384, 33755), (430, 30144), (471, 27520), (480, 27004), (516, 25120), (628, 20640), (640, 20253), (645, 20096), (688, 18840), (785, 16512), (860, 15072), (942, 13760), (960, 13502), (1032, 12560), (1256, 10320), (1290, 10048), (1376, 9420), (1570, 8256), (1720, 7536), (1884, 6880), (1920, 6751), (2064, 6280), (2355, 5504), (2512, 5160), (2580, 5024), (2752, 4710), (3140, 4128), (3440, 3768)]