4780420

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{499}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 10080000

約数和(自身を除く): 5299580

約数列:

[1, 2, 4, 5, 10, 20, 479, 499, 958, 998, 1916, 1996, 2395, 2495, 4790, 4990, 9580, 9980, 239021, 478042, 956084, 1195105, 2390210, 4780420]

約数ペア:

[(1, 4780420), (2, 2390210), (4, 1195105), (5, 956084), (10, 478042), (20, 239021), (479, 9980), (499, 9580), (958, 4990), (998, 4790), (1916, 2495), (1996, 2395)]