1291758720

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{431}}^1$

素因数の和:683

約数の個数: 256

約数和(自身を含む): 4737761280

約数和(自身を除く): 3446002560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 223, 224, 240, 280, 320, 336, 384, 420, 431, 446, 448, 480, 560, 640, 669, 672, 840, 862, 892, 896, 960, 1115, 1120, 1293, 1338, 1344, 1561, 1680, 1724, 1784, 1920, 2155, 2230, 2240, 2586, 2676, 2688, 3017, 3122, 3345, 3360, 3448, 3568, 4310, 4460, 4480, 4683, 5172, 5352, 6034, 6244, 6465, 6690, 6720, 6896, 7136, 7805, 8620, 8920, 9051, 9366, 10344, 10704, 12068, 12488, 12930, 13380, 13440, 13792, 14272, 15085, 15610, 17240, 17840, 18102, 18732, 20688, 21408, 23415, 24136, 24976, 25860, 26760, 27584, 28544, 30170, 31220, 34480, 35680, 36204, 37464, 41376, 42816, 45255, 46830, 48272, 49952, 51720, 53520, 55168, 60340, 62440, 68960, 71360, 72408, 74928, 82752, 85632, 90510, 93660, 96113, 96544, 99904, 103440, 107040, 120680, 124880, 137920, 142720, 144816, 149856, 165504, 181020, 187320, 192226, 193088, 199808, 206880, 214080, 241360, 249760, 275840, 288339, 289632, 299712, 362040, 374640, 384452, 386176, 413760, 428160, 480565, 482720, 499520, 576678, 579264, 599424, 672791, 724080, 749280, 768904, 827520, 961130, 965440, 999040, 1153356, 1158528, 1345582, 1441695, 1448160, 1498560, 1537808, 1922260, 1930880, 2018373, 2306712, 2691164, 2883390, 2896320, 2997120, 3075616, 3363955, 3844520, 4036746, 4613424, 5382328, 5766780, 5792640, 6151232, 6727910, 7689040, 8073492, 9226848, 10091865, 10764656, 11533560, 12302464, 13455820, 15378080, 16146984, 18453696, 20183730, 21529312, 23067120, 26911640, 30756160, 32293968, 36907392, 40367460, 43058624, 46134240, 53823280, 61512320, 64587936, 80734920, 86117248, 92268480, 107646560, 129175872, 161469840, 184536960, 215293120, 258351744, 322939680, 430586240, 645879360, 1291758720]

約数ペア:

[(1, 1291758720), (2, 645879360), (3, 430586240), (4, 322939680), (5, 258351744), (6, 215293120), (7, 184536960), (8, 161469840), (10, 129175872), (12, 107646560), (14, 92268480), (15, 86117248), (16, 80734920), (20, 64587936), (21, 61512320), (24, 53823280), (28, 46134240), (30, 43058624), (32, 40367460), (35, 36907392), (40, 32293968), (42, 30756160), (48, 26911640), (56, 23067120), (60, 21529312), (64, 20183730), (70, 18453696), (80, 16146984), (84, 15378080), (96, 13455820), (105, 12302464), (112, 11533560), (120, 10764656), (128, 10091865), (140, 9226848), (160, 8073492), (168, 7689040), (192, 6727910), (210, 6151232), (223, 5792640), (224, 5766780), (240, 5382328), (280, 4613424), (320, 4036746), (336, 3844520), (384, 3363955), (420, 3075616), (431, 2997120), (446, 2896320), (448, 2883390), (480, 2691164), (560, 2306712), (640, 2018373), (669, 1930880), (672, 1922260), (840, 1537808), (862, 1498560), (892, 1448160), (896, 1441695), (960, 1345582), (1115, 1158528), (1120, 1153356), (1293, 999040), (1338, 965440), (1344, 961130), (1561, 827520), (1680, 768904), (1724, 749280), (1784, 724080), (1920, 672791), (2155, 599424), (2230, 579264), (2240, 576678), (2586, 499520), (2676, 482720), (2688, 480565), (3017, 428160), (3122, 413760), (3345, 386176), (3360, 384452), (3448, 374640), (3568, 362040), (4310, 299712), (4460, 289632), (4480, 288339), (4683, 275840), (5172, 249760), (5352, 241360), (6034, 214080), (6244, 206880), (6465, 199808), (6690, 193088), (6720, 192226), (6896, 187320), (7136, 181020), (7805, 165504), (8620, 149856), (8920, 144816), (9051, 142720), (9366, 137920), (10344, 124880), (10704, 120680), (12068, 107040), (12488, 103440), (12930, 99904), (13380, 96544), (13440, 96113), (13792, 93660), (14272, 90510), (15085, 85632), (15610, 82752), (17240, 74928), (17840, 72408), (18102, 71360), (18732, 68960), (20688, 62440), (21408, 60340), (23415, 55168), (24136, 53520), (24976, 51720), (25860, 49952), (26760, 48272), (27584, 46830), (28544, 45255), (30170, 42816), (31220, 41376), (34480, 37464), (35680, 36204)]