256734720

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1013}}^1$

素因数の和:1053

約数の個数: 240

約数和(自身を含む): 970933392

約数和(自身を除く): 714198672

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 128, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 256, 264, 288, 320, 330, 352, 360, 384, 396, 440, 480, 495, 512, 528, 576, 640, 660, 704, 720, 768, 792, 880, 960, 990, 1013, 1056, 1152, 1280, 1320, 1408, 1440, 1536, 1584, 1760, 1920, 1980, 2026, 2112, 2304, 2560, 2640, 2816, 2880, 3039, 3168, 3520, 3840, 3960, 4052, 4224, 4608, 5065, 5280, 5632, 5760, 6078, 6336, 7040, 7680, 7920, 8104, 8448, 9117, 10130, 10560, 11143, 11520, 12156, 12672, 14080, 15195, 15840, 16208, 16896, 18234, 20260, 21120, 22286, 23040, 24312, 25344, 28160, 30390, 31680, 32416, 33429, 36468, 40520, 42240, 44572, 45585, 48624, 50688, 55715, 60780, 63360, 64832, 66858, 72936, 81040, 84480, 89144, 91170, 97248, 100287, 111430, 121560, 126720, 129664, 133716, 145872, 162080, 167145, 178288, 182340, 194496, 200574, 222860, 243120, 253440, 259328, 267432, 291744, 324160, 334290, 356576, 364680, 388992, 401148, 445720, 486240, 501435, 518656, 534864, 583488, 648320, 668580, 713152, 729360, 777984, 802296, 891440, 972480, 1002870, 1069728, 1166976, 1296640, 1337160, 1426304, 1458720, 1555968, 1604592, 1782880, 1944960, 2005740, 2139456, 2333952, 2593280, 2674320, 2852608, 2917440, 3209184, 3565760, 3889920, 4011480, 4278912, 4667904, 5348640, 5705216, 5834880, 6418368, 7131520, 7779840, 8022960, 8557824, 10697280, 11669760, 12836736, 14263040, 16045920, 17115648, 21394560, 23339520, 25673472, 28526080, 32091840, 42789120, 51346944, 64183680, 85578240, 128367360, 256734720]

約数ペア:

[(1, 256734720), (2, 128367360), (3, 85578240), (4, 64183680), (5, 51346944), (6, 42789120), (8, 32091840), (9, 28526080), (10, 25673472), (11, 23339520), (12, 21394560), (15, 17115648), (16, 16045920), (18, 14263040), (20, 12836736), (22, 11669760), (24, 10697280), (30, 8557824), (32, 8022960), (33, 7779840), (36, 7131520), (40, 6418368), (44, 5834880), (45, 5705216), (48, 5348640), (55, 4667904), (60, 4278912), (64, 4011480), (66, 3889920), (72, 3565760), (80, 3209184), (88, 2917440), (90, 2852608), (96, 2674320), (99, 2593280), (110, 2333952), (120, 2139456), (128, 2005740), (132, 1944960), (144, 1782880), (160, 1604592), (165, 1555968), (176, 1458720), (180, 1426304), (192, 1337160), (198, 1296640), (220, 1166976), (240, 1069728), (256, 1002870), (264, 972480), (288, 891440), (320, 802296), (330, 777984), (352, 729360), (360, 713152), (384, 668580), (396, 648320), (440, 583488), (480, 534864), (495, 518656), (512, 501435), (528, 486240), (576, 445720), (640, 401148), (660, 388992), (704, 364680), (720, 356576), (768, 334290), (792, 324160), (880, 291744), (960, 267432), (990, 259328), (1013, 253440), (1056, 243120), (1152, 222860), (1280, 200574), (1320, 194496), (1408, 182340), (1440, 178288), (1536, 167145), (1584, 162080), (1760, 145872), (1920, 133716), (1980, 129664), (2026, 126720), (2112, 121560), (2304, 111430), (2560, 100287), (2640, 97248), (2816, 91170), (2880, 89144), (3039, 84480), (3168, 81040), (3520, 72936), (3840, 66858), (3960, 64832), (4052, 63360), (4224, 60780), (4608, 55715), (5065, 50688), (5280, 48624), (5632, 45585), (5760, 44572), (6078, 42240), (6336, 40520), (7040, 36468), (7680, 33429), (7920, 32416), (8104, 31680), (8448, 30390), (9117, 28160), (10130, 25344), (10560, 24312), (11143, 23040), (11520, 22286), (12156, 21120), (12672, 20260), (14080, 18234), (15195, 16896), (15840, 16208)]