12800960

素因数分解:

$2^6\times 5^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1$

素因数の和:493

約数の個数: 56

約数和(自身を含む): 30845760

約数和(自身を除く): 18044800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 160, 218, 320, 367, 436, 545, 734, 872, 1090, 1468, 1744, 1835, 2180, 2936, 3488, 3670, 4360, 5872, 6976, 7340, 8720, 11744, 14680, 17440, 23488, 29360, 34880, 40003, 58720, 80006, 117440, 160012, 200015, 320024, 400030, 640048, 800060, 1280096, 1600120, 2560192, 3200240, 6400480, 12800960]

約数ペア:

[(1, 12800960), (2, 6400480), (4, 3200240), (5, 2560192), (8, 1600120), (10, 1280096), (16, 800060), (20, 640048), (32, 400030), (40, 320024), (64, 200015), (80, 160012), (109, 117440), (160, 80006), (218, 58720), (320, 40003), (367, 34880), (436, 29360), (545, 23488), (734, 17440), (872, 14680), (1090, 11744), (1468, 8720), (1744, 7340), (1835, 6976), (2180, 5872), (2936, 4360), (3488, 3670)]