18673920

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{1621}}^1$

素因数の和:1648

約数の個数: 108

約数和(自身を含む): 64649676

約数和(自身を除く): 45975756

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1621, 1920, 2304, 2880, 3242, 3840, 4863, 5760, 6484, 8105, 9726, 11520, 12968, 14589, 16210, 19452, 24315, 25936, 29178, 32420, 38904, 48630, 51872, 58356, 64840, 72945, 77808, 97260, 103744, 116712, 129680, 145890, 155616, 194520, 207488, 233424, 259360, 291780, 311232, 389040, 414976, 466848, 518720, 583560, 622464, 778080, 933696, 1037440, 1167120, 1244928, 1556160, 1867392, 2074880, 2334240, 3112320, 3734784, 4668480, 6224640, 9336960, 18673920]

約数ペア:

[(1, 18673920), (2, 9336960), (3, 6224640), (4, 4668480), (5, 3734784), (6, 3112320), (8, 2334240), (9, 2074880), (10, 1867392), (12, 1556160), (15, 1244928), (16, 1167120), (18, 1037440), (20, 933696), (24, 778080), (30, 622464), (32, 583560), (36, 518720), (40, 466848), (45, 414976), (48, 389040), (60, 311232), (64, 291780), (72, 259360), (80, 233424), (90, 207488), (96, 194520), (120, 155616), (128, 145890), (144, 129680), (160, 116712), (180, 103744), (192, 97260), (240, 77808), (256, 72945), (288, 64840), (320, 58356), (360, 51872), (384, 48630), (480, 38904), (576, 32420), (640, 29178), (720, 25936), (768, 24315), (960, 19452), (1152, 16210), (1280, 14589), (1440, 12968), (1621, 11520), (1920, 9726), (2304, 8105), (2880, 6484), (3242, 5760), (3840, 4863)]