181242880

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:434

約数の個数: 176

約数和(自身を含む): 536477760

約数和(自身を除く): 355234880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 256, 260, 280, 320, 364, 389, 416, 448, 455, 512, 520, 560, 640, 728, 778, 832, 896, 910, 1024, 1040, 1120, 1280, 1456, 1556, 1664, 1792, 1820, 1945, 2080, 2240, 2560, 2723, 2912, 3112, 3328, 3584, 3640, 3890, 4160, 4480, 5057, 5120, 5446, 5824, 6224, 6656, 7168, 7280, 7780, 8320, 8960, 10114, 10892, 11648, 12448, 13312, 13615, 14560, 15560, 16640, 17920, 20228, 21784, 23296, 24896, 25285, 27230, 29120, 31120, 33280, 35399, 35840, 40456, 43568, 46592, 49792, 50570, 54460, 58240, 62240, 66560, 70798, 80912, 87136, 93184, 99584, 101140, 108920, 116480, 124480, 141596, 161824, 174272, 176995, 199168, 202280, 217840, 232960, 248960, 283192, 323648, 348544, 353990, 398336, 404560, 435680, 465920, 497920, 566384, 647296, 697088, 707980, 809120, 871360, 995840, 1132768, 1294592, 1394176, 1415960, 1618240, 1742720, 1991680, 2265536, 2589184, 2788352, 2831920, 3236480, 3485440, 4531072, 5178368, 5663840, 6472960, 6970880, 9062144, 11327680, 12945920, 13941760, 18124288, 22655360, 25891840, 36248576, 45310720, 90621440, 181242880]

約数ペア:

[(1, 181242880), (2, 90621440), (4, 45310720), (5, 36248576), (7, 25891840), (8, 22655360), (10, 18124288), (13, 13941760), (14, 12945920), (16, 11327680), (20, 9062144), (26, 6970880), (28, 6472960), (32, 5663840), (35, 5178368), (40, 4531072), (52, 3485440), (56, 3236480), (64, 2831920), (65, 2788352), (70, 2589184), (80, 2265536), (91, 1991680), (104, 1742720), (112, 1618240), (128, 1415960), (130, 1394176), (140, 1294592), (160, 1132768), (182, 995840), (208, 871360), (224, 809120), (256, 707980), (260, 697088), (280, 647296), (320, 566384), (364, 497920), (389, 465920), (416, 435680), (448, 404560), (455, 398336), (512, 353990), (520, 348544), (560, 323648), (640, 283192), (728, 248960), (778, 232960), (832, 217840), (896, 202280), (910, 199168), (1024, 176995), (1040, 174272), (1120, 161824), (1280, 141596), (1456, 124480), (1556, 116480), (1664, 108920), (1792, 101140), (1820, 99584), (1945, 93184), (2080, 87136), (2240, 80912), (2560, 70798), (2723, 66560), (2912, 62240), (3112, 58240), (3328, 54460), (3584, 50570), (3640, 49792), (3890, 46592), (4160, 43568), (4480, 40456), (5057, 35840), (5120, 35399), (5446, 33280), (5824, 31120), (6224, 29120), (6656, 27230), (7168, 25285), (7280, 24896), (7780, 23296), (8320, 21784), (8960, 20228), (10114, 17920), (10892, 16640), (11648, 15560), (12448, 14560), (13312, 13615)]