639467520

素因数分解:

$2^{15}\times 3^1\times 5^1\times {\mathrm{1301}}^1$

素因数の和:1339

約数の個数: 128

約数和(自身を含む): 2047837680

約数和(自身を除く): 1408370160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1024, 1280, 1301, 1536, 1920, 2048, 2560, 2602, 3072, 3840, 3903, 4096, 5120, 5204, 6144, 6505, 7680, 7806, 8192, 10240, 10408, 12288, 13010, 15360, 15612, 16384, 19515, 20480, 20816, 24576, 26020, 30720, 31224, 32768, 39030, 40960, 41632, 49152, 52040, 61440, 62448, 78060, 81920, 83264, 98304, 104080, 122880, 124896, 156120, 163840, 166528, 208160, 245760, 249792, 312240, 333056, 416320, 491520, 499584, 624480, 666112, 832640, 999168, 1248960, 1332224, 1665280, 1998336, 2497920, 2664448, 3330560, 3996672, 4995840, 5328896, 6661120, 7993344, 9991680, 10657792, 13322240, 15986688, 19983360, 21315584, 26644480, 31973376, 39966720, 42631168, 53288960, 63946752, 79933440, 106577920, 127893504, 159866880, 213155840, 319733760, 639467520]

約数ペア:

[(1, 639467520), (2, 319733760), (3, 213155840), (4, 159866880), (5, 127893504), (6, 106577920), (8, 79933440), (10, 63946752), (12, 53288960), (15, 42631168), (16, 39966720), (20, 31973376), (24, 26644480), (30, 21315584), (32, 19983360), (40, 15986688), (48, 13322240), (60, 10657792), (64, 9991680), (80, 7993344), (96, 6661120), (120, 5328896), (128, 4995840), (160, 3996672), (192, 3330560), (240, 2664448), (256, 2497920), (320, 1998336), (384, 1665280), (480, 1332224), (512, 1248960), (640, 999168), (768, 832640), (960, 666112), (1024, 624480), (1280, 499584), (1301, 491520), (1536, 416320), (1920, 333056), (2048, 312240), (2560, 249792), (2602, 245760), (3072, 208160), (3840, 166528), (3903, 163840), (4096, 156120), (5120, 124896), (5204, 122880), (6144, 104080), (6505, 98304), (7680, 83264), (7806, 81920), (8192, 78060), (10240, 62448), (10408, 61440), (12288, 52040), (13010, 49152), (15360, 41632), (15612, 40960), (16384, 39030), (19515, 32768), (20480, 31224), (20816, 30720), (24576, 26020)]