389888960

素因数分解:

$2^6\times 5^1\times {\mathrm{467}}^1\times {\mathrm{2609}}^1$

素因数の和:3093

約数の個数: 56

約数和(自身を含む): 930767760

約数和(自身を除く): 540878800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 467, 934, 1868, 2335, 2609, 3736, 4670, 5218, 7472, 9340, 10436, 13045, 14944, 18680, 20872, 26090, 29888, 37360, 41744, 52180, 74720, 83488, 104360, 149440, 166976, 208720, 417440, 834880, 1218403, 2436806, 4873612, 6092015, 9747224, 12184030, 19494448, 24368060, 38988896, 48736120, 77977792, 97472240, 194944480, 389888960]

約数ペア:

[(1, 389888960), (2, 194944480), (4, 97472240), (5, 77977792), (8, 48736120), (10, 38988896), (16, 24368060), (20, 19494448), (32, 12184030), (40, 9747224), (64, 6092015), (80, 4873612), (160, 2436806), (320, 1218403), (467, 834880), (934, 417440), (1868, 208720), (2335, 166976), (2609, 149440), (3736, 104360), (4670, 83488), (5218, 74720), (7472, 52180), (9340, 41744), (10436, 37360), (13045, 29888), (14944, 26090), (18680, 20872)]