638267520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{643}}^1$

素因数の和:723

約数の個数: 256

約数和(自身を含む): 2270177280

約数和(自身を除く): 1631909760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 47, 48, 55, 60, 64, 66, 80, 88, 94, 96, 110, 120, 128, 132, 141, 160, 165, 176, 188, 192, 220, 235, 240, 264, 282, 320, 330, 352, 376, 384, 440, 470, 480, 517, 528, 564, 640, 643, 660, 704, 705, 752, 880, 940, 960, 1034, 1056, 1128, 1286, 1320, 1408, 1410, 1504, 1551, 1760, 1880, 1920, 1929, 2068, 2112, 2256, 2572, 2585, 2640, 2820, 3008, 3102, 3215, 3520, 3760, 3858, 4136, 4224, 4512, 5144, 5170, 5280, 5640, 6016, 6204, 6430, 7040, 7073, 7520, 7716, 7755, 8272, 9024, 9645, 10288, 10340, 10560, 11280, 12408, 12860, 14146, 15040, 15432, 15510, 16544, 18048, 19290, 20576, 20680, 21120, 21219, 22560, 24816, 25720, 28292, 30080, 30221, 30864, 31020, 33088, 35365, 38580, 41152, 41360, 42438, 45120, 49632, 51440, 56584, 60442, 61728, 62040, 66176, 70730, 77160, 82304, 82720, 84876, 90240, 90663, 99264, 102880, 106095, 113168, 120884, 123456, 124080, 141460, 151105, 154320, 165440, 169752, 181326, 198528, 205760, 212190, 226336, 241768, 246912, 248160, 282920, 302210, 308640, 330880, 332431, 339504, 362652, 411520, 424380, 452672, 453315, 483536, 496320, 565840, 604420, 617280, 664862, 679008, 725304, 848760, 905344, 906630, 967072, 992640, 997293, 1131680, 1208840, 1234560, 1329724, 1358016, 1450608, 1662155, 1697520, 1813260, 1934144, 1994586, 2263360, 2417680, 2659448, 2716032, 2901216, 3324310, 3395040, 3626520, 3868288, 3989172, 4526720, 4835360, 4986465, 5318896, 5802432, 6648620, 6790080, 7253040, 7978344, 9670720, 9972930, 10637792, 11604864, 13297240, 13580160, 14506080, 15956688, 19341440, 19945860, 21275584, 26594480, 29012160, 31913376, 39891720, 42551168, 53188960, 58024320, 63826752, 79783440, 106377920, 127653504, 159566880, 212755840, 319133760, 638267520]

約数ペア:

[(1, 638267520), (2, 319133760), (3, 212755840), (4, 159566880), (5, 127653504), (6, 106377920), (8, 79783440), (10, 63826752), (11, 58024320), (12, 53188960), (15, 42551168), (16, 39891720), (20, 31913376), (22, 29012160), (24, 26594480), (30, 21275584), (32, 19945860), (33, 19341440), (40, 15956688), (44, 14506080), (47, 13580160), (48, 13297240), (55, 11604864), (60, 10637792), (64, 9972930), (66, 9670720), (80, 7978344), (88, 7253040), (94, 6790080), (96, 6648620), (110, 5802432), (120, 5318896), (128, 4986465), (132, 4835360), (141, 4526720), (160, 3989172), (165, 3868288), (176, 3626520), (188, 3395040), (192, 3324310), (220, 2901216), (235, 2716032), (240, 2659448), (264, 2417680), (282, 2263360), (320, 1994586), (330, 1934144), (352, 1813260), (376, 1697520), (384, 1662155), (440, 1450608), (470, 1358016), (480, 1329724), (517, 1234560), (528, 1208840), (564, 1131680), (640, 997293), (643, 992640), (660, 967072), (704, 906630), (705, 905344), (752, 848760), (880, 725304), (940, 679008), (960, 664862), (1034, 617280), (1056, 604420), (1128, 565840), (1286, 496320), (1320, 483536), (1408, 453315), (1410, 452672), (1504, 424380), (1551, 411520), (1760, 362652), (1880, 339504), (1920, 332431), (1929, 330880), (2068, 308640), (2112, 302210), (2256, 282920), (2572, 248160), (2585, 246912), (2640, 241768), (2820, 226336), (3008, 212190), (3102, 205760), (3215, 198528), (3520, 181326), (3760, 169752), (3858, 165440), (4136, 154320), (4224, 151105), (4512, 141460), (5144, 124080), (5170, 123456), (5280, 120884), (5640, 113168), (6016, 106095), (6204, 102880), (6430, 99264), (7040, 90663), (7073, 90240), (7520, 84876), (7716, 82720), (7755, 82304), (8272, 77160), (9024, 70730), (9645, 66176), (10288, 62040), (10340, 61728), (10560, 60442), (11280, 56584), (12408, 51440), (12860, 49632), (14146, 45120), (15040, 42438), (15432, 41360), (15510, 41152), (16544, 38580), (18048, 35365), (19290, 33088), (20576, 31020), (20680, 30864), (21120, 30221), (21219, 30080), (22560, 28292), (24816, 25720)]