20680190

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{2459}}^1$

素因数の和:2524

約数の個数: 24

約数和(自身を含む): 38567880

約数和(自身を除く): 17887690

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 841, 1682, 2459, 4205, 4918, 8410, 12295, 24590, 71311, 142622, 356555, 713110, 2068019, 4136038, 10340095, 20680190]

約数ペア:

[(1, 20680190), (2, 10340095), (5, 4136038), (10, 2068019), (29, 713110), (58, 356555), (145, 142622), (290, 71311), (841, 24590), (1682, 12295), (2459, 8410), (4205, 4918)]