1279852800

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{191}}^1\times {\mathrm{349}}^1$

素因数の和:569

約数の個数: 216

約数和(自身を含む): 4258060800

約数和(自身を除く): 2978208000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 128, 150, 160, 191, 192, 200, 240, 256, 300, 320, 349, 382, 384, 400, 480, 573, 600, 640, 698, 764, 768, 800, 955, 960, 1047, 1146, 1200, 1280, 1396, 1528, 1600, 1745, 1910, 1920, 2094, 2292, 2400, 2792, 2865, 3056, 3200, 3490, 3820, 3840, 4188, 4584, 4775, 4800, 5235, 5584, 5730, 6112, 6400, 6980, 7640, 8376, 8725, 9168, 9550, 9600, 10470, 11168, 11460, 12224, 13960, 14325, 15280, 16752, 17450, 18336, 19100, 19200, 20940, 22336, 22920, 24448, 26175, 27920, 28650, 30560, 33504, 34900, 36672, 38200, 41880, 44672, 45840, 48896, 52350, 55840, 57300, 61120, 66659, 67008, 69800, 73344, 76400, 83760, 89344, 91680, 104700, 111680, 114600, 122240, 133318, 134016, 139600, 146688, 152800, 167520, 183360, 199977, 209400, 223360, 229200, 244480, 266636, 268032, 279200, 305600, 333295, 335040, 366720, 399954, 418800, 446720, 458400, 533272, 558400, 611200, 666590, 670080, 733440, 799908, 837600, 916800, 999885, 1066544, 1116800, 1222400, 1333180, 1340160, 1599816, 1666475, 1675200, 1833600, 1999770, 2133088, 2233600, 2666360, 3199632, 3332950, 3350400, 3667200, 3999540, 4266176, 4999425, 5332720, 6399264, 6665900, 6700800, 7999080, 8532352, 9998850, 10665440, 12798528, 13331800, 15998160, 17064704, 19997700, 21330880, 25597056, 26663600, 31996320, 39995400, 42661760, 51194112, 53327200, 63992640, 79990800, 85323520, 106654400, 127985280, 159981600, 213308800, 255970560, 319963200, 426617600, 639926400, 1279852800]

約数ペア:

[(1, 1279852800), (2, 639926400), (3, 426617600), (4, 319963200), (5, 255970560), (6, 213308800), (8, 159981600), (10, 127985280), (12, 106654400), (15, 85323520), (16, 79990800), (20, 63992640), (24, 53327200), (25, 51194112), (30, 42661760), (32, 39995400), (40, 31996320), (48, 26663600), (50, 25597056), (60, 21330880), (64, 19997700), (75, 17064704), (80, 15998160), (96, 13331800), (100, 12798528), (120, 10665440), (128, 9998850), (150, 8532352), (160, 7999080), (191, 6700800), (192, 6665900), (200, 6399264), (240, 5332720), (256, 4999425), (300, 4266176), (320, 3999540), (349, 3667200), (382, 3350400), (384, 3332950), (400, 3199632), (480, 2666360), (573, 2233600), (600, 2133088), (640, 1999770), (698, 1833600), (764, 1675200), (768, 1666475), (800, 1599816), (955, 1340160), (960, 1333180), (1047, 1222400), (1146, 1116800), (1200, 1066544), (1280, 999885), (1396, 916800), (1528, 837600), (1600, 799908), (1745, 733440), (1910, 670080), (1920, 666590), (2094, 611200), (2292, 558400), (2400, 533272), (2792, 458400), (2865, 446720), (3056, 418800), (3200, 399954), (3490, 366720), (3820, 335040), (3840, 333295), (4188, 305600), (4584, 279200), (4775, 268032), (4800, 266636), (5235, 244480), (5584, 229200), (5730, 223360), (6112, 209400), (6400, 199977), (6980, 183360), (7640, 167520), (8376, 152800), (8725, 146688), (9168, 139600), (9550, 134016), (9600, 133318), (10470, 122240), (11168, 114600), (11460, 111680), (12224, 104700), (13960, 91680), (14325, 89344), (15280, 83760), (16752, 76400), (17450, 73344), (18336, 69800), (19100, 67008), (19200, 66659), (20940, 61120), (22336, 57300), (22920, 55840), (24448, 52350), (26175, 48896), (27920, 45840), (28650, 44672), (30560, 41880), (33504, 38200), (34900, 36672)]