781025280

素因数分解:

$2^{15}\times 3^1\times 5^1\times 7^1\times {\mathrm{227}}^1$

素因数の和:272

約数の個数: 256

約数和(自身を含む): 2868860160

約数和(自身を除く): 2087834880

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, 224, 227, 240, 256, 280, 320, 336, 384, 420, 448, 454, 480, 512, 560, 640, 672, 681, 768, 840, 896, 908, 960, 1024, 1120, 1135, 1280, 1344, 1362, 1536, 1589, 1680, 1792, 1816, 1920, 2048, 2240, 2270, 2560, 2688, 2724, 3072, 3178, 3360, 3405, 3584, 3632, 3840, 4096, 4480, 4540, 4767, 5120, 5376, 5448, 6144, 6356, 6720, 6810, 7168, 7264, 7680, 7945, 8192, 8960, 9080, 9534, 10240, 10752, 10896, 12288, 12712, 13440, 13620, 14336, 14528, 15360, 15890, 16384, 17920, 18160, 19068, 20480, 21504, 21792, 23835, 24576, 25424, 26880, 27240, 28672, 29056, 30720, 31780, 32768, 35840, 36320, 38136, 40960, 43008, 43584, 47670, 49152, 50848, 53760, 54480, 57344, 58112, 61440, 63560, 71680, 72640, 76272, 81920, 86016, 87168, 95340, 98304, 101696, 107520, 108960, 114688, 116224, 122880, 127120, 143360, 145280, 152544, 163840, 172032, 174336, 190680, 203392, 215040, 217920, 229376, 232448, 245760, 254240, 286720, 290560, 305088, 344064, 348672, 381360, 406784, 430080, 435840, 464896, 491520, 508480, 573440, 581120, 610176, 688128, 697344, 762720, 813568, 860160, 871680, 929792, 1016960, 1146880, 1162240, 1220352, 1394688, 1525440, 1627136, 1720320, 1743360, 1859584, 2033920, 2324480, 2440704, 2789376, 3050880, 3254272, 3440640, 3486720, 3719168, 4067840, 4648960, 4881408, 5578752, 6101760, 6508544, 6973440, 7438336, 8135680, 9297920, 9762816, 11157504, 12203520, 13017088, 13946880, 16271360, 18595840, 19525632, 22315008, 24407040, 26034176, 27893760, 32542720, 37191680, 39051264, 48814080, 52068352, 55787520, 65085440, 78102528, 97628160, 111575040, 130170880, 156205056, 195256320, 260341760, 390512640, 781025280]

約数ペア:

[(1, 781025280), (2, 390512640), (3, 260341760), (4, 195256320), (5, 156205056), (6, 130170880), (7, 111575040), (8, 97628160), (10, 78102528), (12, 65085440), (14, 55787520), (15, 52068352), (16, 48814080), (20, 39051264), (21, 37191680), (24, 32542720), (28, 27893760), (30, 26034176), (32, 24407040), (35, 22315008), (40, 19525632), (42, 18595840), (48, 16271360), (56, 13946880), (60, 13017088), (64, 12203520), (70, 11157504), (80, 9762816), (84, 9297920), (96, 8135680), (105, 7438336), (112, 6973440), (120, 6508544), (128, 6101760), (140, 5578752), (160, 4881408), (168, 4648960), (192, 4067840), (210, 3719168), (224, 3486720), (227, 3440640), (240, 3254272), (256, 3050880), (280, 2789376), (320, 2440704), (336, 2324480), (384, 2033920), (420, 1859584), (448, 1743360), (454, 1720320), (480, 1627136), (512, 1525440), (560, 1394688), (640, 1220352), (672, 1162240), (681, 1146880), (768, 1016960), (840, 929792), (896, 871680), (908, 860160), (960, 813568), (1024, 762720), (1120, 697344), (1135, 688128), (1280, 610176), (1344, 581120), (1362, 573440), (1536, 508480), (1589, 491520), (1680, 464896), (1792, 435840), (1816, 430080), (1920, 406784), (2048, 381360), (2240, 348672), (2270, 344064), (2560, 305088), (2688, 290560), (2724, 286720), (3072, 254240), (3178, 245760), (3360, 232448), (3405, 229376), (3584, 217920), (3632, 215040), (3840, 203392), (4096, 190680), (4480, 174336), (4540, 172032), (4767, 163840), (5120, 152544), (5376, 145280), (5448, 143360), (6144, 127120), (6356, 122880), (6720, 116224), (6810, 114688), (7168, 108960), (7264, 107520), (7680, 101696), (7945, 98304), (8192, 95340), (8960, 87168), (9080, 86016), (9534, 81920), (10240, 76272), (10752, 72640), (10896, 71680), (12288, 63560), (12712, 61440), (13440, 58112), (13620, 57344), (14336, 54480), (14528, 53760), (15360, 50848), (15890, 49152), (16384, 47670), (17920, 43584), (18160, 43008), (19068, 40960), (20480, 38136), (21504, 36320), (21792, 35840), (23835, 32768), (24576, 31780), (25424, 30720), (26880, 29056), (27240, 28672)]