398622720

素因数分解:

$2^{15}\times 3^1\times 5^1\times {\mathrm{811}}^1$

素因数の和:849

約数の個数: 128

約数和(自身を含む): 1277146080

約数和(自身を除く): 878523360

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, 811, 960, 1024, 1280, 1536, 1622, 1920, 2048, 2433, 2560, 3072, 3244, 3840, 4055, 4096, 4866, 5120, 6144, 6488, 7680, 8110, 8192, 9732, 10240, 12165, 12288, 12976, 15360, 16220, 16384, 19464, 20480, 24330, 24576, 25952, 30720, 32440, 32768, 38928, 40960, 48660, 49152, 51904, 61440, 64880, 77856, 81920, 97320, 98304, 103808, 122880, 129760, 155712, 163840, 194640, 207616, 245760, 259520, 311424, 389280, 415232, 491520, 519040, 622848, 778560, 830464, 1038080, 1245696, 1557120, 1660928, 2076160, 2491392, 3114240, 3321856, 4152320, 4982784, 6228480, 6643712, 8304640, 9965568, 12456960, 13287424, 16609280, 19931136, 24913920, 26574848, 33218560, 39862272, 49827840, 66437120, 79724544, 99655680, 132874240, 199311360, 398622720]

約数ペア:

[(1, 398622720), (2, 199311360), (3, 132874240), (4, 99655680), (5, 79724544), (6, 66437120), (8, 49827840), (10, 39862272), (12, 33218560), (15, 26574848), (16, 24913920), (20, 19931136), (24, 16609280), (30, 13287424), (32, 12456960), (40, 9965568), (48, 8304640), (60, 6643712), (64, 6228480), (80, 4982784), (96, 4152320), (120, 3321856), (128, 3114240), (160, 2491392), (192, 2076160), (240, 1660928), (256, 1557120), (320, 1245696), (384, 1038080), (480, 830464), (512, 778560), (640, 622848), (768, 519040), (811, 491520), (960, 415232), (1024, 389280), (1280, 311424), (1536, 259520), (1622, 245760), (1920, 207616), (2048, 194640), (2433, 163840), (2560, 155712), (3072, 129760), (3244, 122880), (3840, 103808), (4055, 98304), (4096, 97320), (4866, 81920), (5120, 77856), (6144, 64880), (6488, 61440), (7680, 51904), (8110, 49152), (8192, 48660), (9732, 40960), (10240, 38928), (12165, 32768), (12288, 32440), (12976, 30720), (15360, 25952), (16220, 24576), (16384, 24330), (19464, 20480)]