19428160

素因数分解:

$2^6\times 5^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:683

約数の個数: 56

約数和(自身を含む): 46771560

約数和(自身を除く): 27343400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 160, 218, 320, 436, 545, 557, 872, 1090, 1114, 1744, 2180, 2228, 2785, 3488, 4360, 4456, 5570, 6976, 8720, 8912, 11140, 17440, 17824, 22280, 34880, 35648, 44560, 60713, 89120, 121426, 178240, 242852, 303565, 485704, 607130, 971408, 1214260, 1942816, 2428520, 3885632, 4857040, 9714080, 19428160]

約数ペア:

[(1, 19428160), (2, 9714080), (4, 4857040), (5, 3885632), (8, 2428520), (10, 1942816), (16, 1214260), (20, 971408), (32, 607130), (40, 485704), (64, 303565), (80, 242852), (109, 178240), (160, 121426), (218, 89120), (320, 60713), (436, 44560), (545, 35648), (557, 34880), (872, 22280), (1090, 17824), (1114, 17440), (1744, 11140), (2180, 8912), (2228, 8720), (2785, 6976), (3488, 5570), (4360, 4456)]