128977920

素因数分解:

$2^{10}\times 3^4\times 5^1\times {\mathrm{311}}^1$

素因数の和:348

約数の個数: 220

約数和(自身を含む): 463670064

約数和(自身を除く): 334692144

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 311, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 622, 640, 648, 720, 768, 810, 864, 933, 960, 1024, 1080, 1152, 1244, 1280, 1296, 1440, 1536, 1555, 1620, 1728, 1866, 1920, 2160, 2304, 2488, 2560, 2592, 2799, 2880, 3072, 3110, 3240, 3456, 3732, 3840, 4320, 4608, 4665, 4976, 5120, 5184, 5598, 5760, 6220, 6480, 6912, 7464, 7680, 8397, 8640, 9216, 9330, 9952, 10368, 11196, 11520, 12440, 12960, 13824, 13995, 14928, 15360, 16794, 17280, 18660, 19904, 20736, 22392, 23040, 24880, 25191, 25920, 27648, 27990, 29856, 33588, 34560, 37320, 39808, 41472, 41985, 44784, 46080, 49760, 50382, 51840, 55980, 59712, 67176, 69120, 74640, 79616, 82944, 83970, 89568, 99520, 100764, 103680, 111960, 119424, 125955, 134352, 138240, 149280, 159232, 167940, 179136, 199040, 201528, 207360, 223920, 238848, 251910, 268704, 298560, 318464, 335880, 358272, 398080, 403056, 414720, 447840, 477696, 503820, 537408, 597120, 671760, 716544, 796160, 806112, 895680, 955392, 1007640, 1074816, 1194240, 1343520, 1433088, 1592320, 1612224, 1791360, 2015280, 2149632, 2388480, 2687040, 2866176, 3224448, 3582720, 4030560, 4299264, 4776960, 5374080, 6448896, 7165440, 8061120, 8598528, 10748160, 12897792, 14330880, 16122240, 21496320, 25795584, 32244480, 42992640, 64488960, 128977920]

約数ペア:

[(1, 128977920), (2, 64488960), (3, 42992640), (4, 32244480), (5, 25795584), (6, 21496320), (8, 16122240), (9, 14330880), (10, 12897792), (12, 10748160), (15, 8598528), (16, 8061120), (18, 7165440), (20, 6448896), (24, 5374080), (27, 4776960), (30, 4299264), (32, 4030560), (36, 3582720), (40, 3224448), (45, 2866176), (48, 2687040), (54, 2388480), (60, 2149632), (64, 2015280), (72, 1791360), (80, 1612224), (81, 1592320), (90, 1433088), (96, 1343520), (108, 1194240), (120, 1074816), (128, 1007640), (135, 955392), (144, 895680), (160, 806112), (162, 796160), (180, 716544), (192, 671760), (216, 597120), (240, 537408), (256, 503820), (270, 477696), (288, 447840), (311, 414720), (320, 403056), (324, 398080), (360, 358272), (384, 335880), (405, 318464), (432, 298560), (480, 268704), (512, 251910), (540, 238848), (576, 223920), (622, 207360), (640, 201528), (648, 199040), (720, 179136), (768, 167940), (810, 159232), (864, 149280), (933, 138240), (960, 134352), (1024, 125955), (1080, 119424), (1152, 111960), (1244, 103680), (1280, 100764), (1296, 99520), (1440, 89568), (1536, 83970), (1555, 82944), (1620, 79616), (1728, 74640), (1866, 69120), (1920, 67176), (2160, 59712), (2304, 55980), (2488, 51840), (2560, 50382), (2592, 49760), (2799, 46080), (2880, 44784), (3072, 41985), (3110, 41472), (3240, 39808), (3456, 37320), (3732, 34560), (3840, 33588), (4320, 29856), (4608, 27990), (4665, 27648), (4976, 25920), (5120, 25191), (5184, 24880), (5598, 23040), (5760, 22392), (6220, 20736), (6480, 19904), (6912, 18660), (7464, 17280), (7680, 16794), (8397, 15360), (8640, 14928), (9216, 13995), (9330, 13824), (9952, 12960), (10368, 12440), (11196, 11520)]