287299040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{256517}}^1$

素因数の和:256539

約数の個数: 48

約数和(自身を含む): 775710432

約数和(自身を除く): 488411392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 256517, 513034, 1026068, 1282585, 1795619, 2052136, 2565170, 3591238, 4104272, 5130340, 7182476, 8208544, 8978095, 10260680, 14364952, 17956190, 20521360, 28729904, 35912380, 41042720, 57459808, 71824760, 143649520, 287299040]

約数ペア:

[(1, 287299040), (2, 143649520), (4, 71824760), (5, 57459808), (7, 41042720), (8, 35912380), (10, 28729904), (14, 20521360), (16, 17956190), (20, 14364952), (28, 10260680), (32, 8978095), (35, 8208544), (40, 7182476), (56, 5130340), (70, 4104272), (80, 3591238), (112, 2565170), (140, 2052136), (160, 1795619), (224, 1282585), (280, 1026068), (560, 513034), (1120, 256517)]