128355840

素因数分解:

$2^9\times 3^4\times 5^1\times {\mathrm{619}}^1$

素因数の和:654

約数の個数: 200

約数和(自身を含む): 460472760

約数和(自身を除く): 332116920

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, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 619, 640, 648, 720, 768, 810, 864, 960, 1080, 1152, 1238, 1280, 1296, 1440, 1536, 1620, 1728, 1857, 1920, 2160, 2304, 2476, 2560, 2592, 2880, 3095, 3240, 3456, 3714, 3840, 4320, 4608, 4952, 5184, 5571, 5760, 6190, 6480, 6912, 7428, 7680, 8640, 9285, 9904, 10368, 11142, 11520, 12380, 12960, 13824, 14856, 16713, 17280, 18570, 19808, 20736, 22284, 23040, 24760, 25920, 27855, 29712, 33426, 34560, 37140, 39616, 41472, 44568, 49520, 50139, 51840, 55710, 59424, 66852, 69120, 74280, 79232, 83565, 89136, 99040, 100278, 103680, 111420, 118848, 133704, 148560, 158464, 167130, 178272, 198080, 200556, 207360, 222840, 237696, 250695, 267408, 297120, 316928, 334260, 356544, 396160, 401112, 445680, 475392, 501390, 534816, 594240, 668520, 713088, 792320, 802224, 891360, 950784, 1002780, 1069632, 1188480, 1337040, 1426176, 1584640, 1604448, 1782720, 2005560, 2139264, 2376960, 2674080, 2852352, 3208896, 3565440, 4011120, 4278528, 4753920, 5348160, 6417792, 7130880, 8022240, 8557056, 10696320, 12835584, 14261760, 16044480, 21392640, 25671168, 32088960, 42785280, 64177920, 128355840]

約数ペア:

[(1, 128355840), (2, 64177920), (3, 42785280), (4, 32088960), (5, 25671168), (6, 21392640), (8, 16044480), (9, 14261760), (10, 12835584), (12, 10696320), (15, 8557056), (16, 8022240), (18, 7130880), (20, 6417792), (24, 5348160), (27, 4753920), (30, 4278528), (32, 4011120), (36, 3565440), (40, 3208896), (45, 2852352), (48, 2674080), (54, 2376960), (60, 2139264), (64, 2005560), (72, 1782720), (80, 1604448), (81, 1584640), (90, 1426176), (96, 1337040), (108, 1188480), (120, 1069632), (128, 1002780), (135, 950784), (144, 891360), (160, 802224), (162, 792320), (180, 713088), (192, 668520), (216, 594240), (240, 534816), (256, 501390), (270, 475392), (288, 445680), (320, 401112), (324, 396160), (360, 356544), (384, 334260), (405, 316928), (432, 297120), (480, 267408), (512, 250695), (540, 237696), (576, 222840), (619, 207360), (640, 200556), (648, 198080), (720, 178272), (768, 167130), (810, 158464), (864, 148560), (960, 133704), (1080, 118848), (1152, 111420), (1238, 103680), (1280, 100278), (1296, 99040), (1440, 89136), (1536, 83565), (1620, 79232), (1728, 74280), (1857, 69120), (1920, 66852), (2160, 59424), (2304, 55710), (2476, 51840), (2560, 50139), (2592, 49520), (2880, 44568), (3095, 41472), (3240, 39616), (3456, 37140), (3714, 34560), (3840, 33426), (4320, 29712), (4608, 27855), (4952, 25920), (5184, 24760), (5571, 23040), (5760, 22284), (6190, 20736), (6480, 19808), (6912, 18570), (7428, 17280), (7680, 16713), (8640, 14856), (9285, 13824), (9904, 12960), (10368, 12380), (11142, 11520)]