90621440

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:432

約数の個数: 160

約数和(自身を含む): 268107840

約数和(自身を除く): 177486400

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, 1040, 1120, 1280, 1456, 1556, 1664, 1792, 1820, 1945, 2080, 2240, 2560, 2723, 2912, 3112, 3328, 3584, 3640, 3890, 4160, 4480, 5057, 5446, 5824, 6224, 6656, 7280, 7780, 8320, 8960, 10114, 10892, 11648, 12448, 13615, 14560, 15560, 16640, 17920, 20228, 21784, 23296, 24896, 25285, 27230, 29120, 31120, 33280, 35399, 40456, 43568, 46592, 49792, 50570, 54460, 58240, 62240, 70798, 80912, 87136, 99584, 101140, 108920, 116480, 124480, 141596, 161824, 174272, 176995, 199168, 202280, 217840, 232960, 248960, 283192, 323648, 348544, 353990, 404560, 435680, 497920, 566384, 647296, 697088, 707980, 809120, 871360, 995840, 1132768, 1294592, 1394176, 1415960, 1618240, 1742720, 2265536, 2589184, 2831920, 3236480, 3485440, 4531072, 5663840, 6472960, 6970880, 9062144, 11327680, 12945920, 18124288, 22655360, 45310720, 90621440]

約数ペア:

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