20449580

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{3613}}^1$

素因数の和:3905

約数の個数: 24

約数和(自身を含む): 43107792

約数和(自身を除く): 22658212

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 1132, 1415, 2830, 3613, 5660, 7226, 14452, 18065, 36130, 72260, 1022479, 2044958, 4089916, 5112395, 10224790, 20449580]

約数ペア:

[(1, 20449580), (2, 10224790), (4, 5112395), (5, 4089916), (10, 2044958), (20, 1022479), (283, 72260), (566, 36130), (1132, 18065), (1415, 14452), (2830, 7226), (3613, 5660)]