399293440

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{857}}^1$

素因数の和:902

約数の個数: 176

約数和(自身を含む): 1180251072

約数和(自身を除く): 780957632

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, 416, 448, 455, 512, 520, 560, 640, 728, 832, 857, 896, 910, 1024, 1040, 1120, 1280, 1456, 1664, 1714, 1792, 1820, 2080, 2240, 2560, 2912, 3328, 3428, 3584, 3640, 4160, 4285, 4480, 5120, 5824, 5999, 6656, 6856, 7168, 7280, 8320, 8570, 8960, 11141, 11648, 11998, 13312, 13712, 14560, 16640, 17140, 17920, 22282, 23296, 23996, 27424, 29120, 29995, 33280, 34280, 35840, 44564, 46592, 47992, 54848, 55705, 58240, 59990, 66560, 68560, 77987, 89128, 93184, 95984, 109696, 111410, 116480, 119980, 137120, 155974, 178256, 191968, 219392, 222820, 232960, 239960, 274240, 311948, 356512, 383936, 389935, 438784, 445640, 465920, 479920, 548480, 623896, 713024, 767872, 779870, 877568, 891280, 959840, 1096960, 1247792, 1426048, 1535744, 1559740, 1782560, 1919680, 2193920, 2495584, 2852096, 3071488, 3119480, 3565120, 3839360, 4387840, 4991168, 5704192, 6142976, 6238960, 7130240, 7678720, 9982336, 11408384, 12477920, 14260480, 15357440, 19964672, 24955840, 28520960, 30714880, 39929344, 49911680, 57041920, 79858688, 99823360, 199646720, 399293440]

約数ペア:

[(1, 399293440), (2, 199646720), (4, 99823360), (5, 79858688), (7, 57041920), (8, 49911680), (10, 39929344), (13, 30714880), (14, 28520960), (16, 24955840), (20, 19964672), (26, 15357440), (28, 14260480), (32, 12477920), (35, 11408384), (40, 9982336), (52, 7678720), (56, 7130240), (64, 6238960), (65, 6142976), (70, 5704192), (80, 4991168), (91, 4387840), (104, 3839360), (112, 3565120), (128, 3119480), (130, 3071488), (140, 2852096), (160, 2495584), (182, 2193920), (208, 1919680), (224, 1782560), (256, 1559740), (260, 1535744), (280, 1426048), (320, 1247792), (364, 1096960), (416, 959840), (448, 891280), (455, 877568), (512, 779870), (520, 767872), (560, 713024), (640, 623896), (728, 548480), (832, 479920), (857, 465920), (896, 445640), (910, 438784), (1024, 389935), (1040, 383936), (1120, 356512), (1280, 311948), (1456, 274240), (1664, 239960), (1714, 232960), (1792, 222820), (1820, 219392), (2080, 191968), (2240, 178256), (2560, 155974), (2912, 137120), (3328, 119980), (3428, 116480), (3584, 111410), (3640, 109696), (4160, 95984), (4285, 93184), (4480, 89128), (5120, 77987), (5824, 68560), (5999, 66560), (6656, 59990), (6856, 58240), (7168, 55705), (7280, 54848), (8320, 47992), (8570, 46592), (8960, 44564), (11141, 35840), (11648, 34280), (11998, 33280), (13312, 29995), (13712, 29120), (14560, 27424), (16640, 23996), (17140, 23296), (17920, 22282)]