51203840

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 124111680

約数和(自身を除く): 72907840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 367, 436, 545, 640, 734, 872, 1090, 1280, 1468, 1744, 1835, 2180, 2936, 3488, 3670, 4360, 5872, 6976, 7340, 8720, 11744, 13952, 14680, 17440, 23488, 27904, 29360, 34880, 40003, 46976, 58720, 69760, 80006, 93952, 117440, 139520, 160012, 200015, 234880, 320024, 400030, 469760, 640048, 800060, 1280096, 1600120, 2560192, 3200240, 5120384, 6400480, 10240768, 12800960, 25601920, 51203840]

約数ペア:

[(1, 51203840), (2, 25601920), (4, 12800960), (5, 10240768), (8, 6400480), (10, 5120384), (16, 3200240), (20, 2560192), (32, 1600120), (40, 1280096), (64, 800060), (80, 640048), (109, 469760), (128, 400030), (160, 320024), (218, 234880), (256, 200015), (320, 160012), (367, 139520), (436, 117440), (545, 93952), (640, 80006), (734, 69760), (872, 58720), (1090, 46976), (1280, 40003), (1468, 34880), (1744, 29360), (1835, 27904), (2180, 23488), (2936, 17440), (3488, 14680), (3670, 13952), (4360, 11744), (5872, 8720), (6976, 7340)]