20204516

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{647}}^1$

素因数の和:899

約数の個数: 24

約数和(自身を含む): 36542016

約数和(自身を除く): 16337500

約数列:

[1, 2, 4, 37, 74, 148, 211, 422, 647, 844, 1294, 2588, 7807, 15614, 23939, 31228, 47878, 95756, 136517, 273034, 546068, 5051129, 10102258, 20204516]

約数ペア:

[(1, 20204516), (2, 10102258), (4, 5051129), (37, 546068), (74, 273034), (148, 136517), (211, 95756), (422, 47878), (647, 31228), (844, 23939), (1294, 15614), (2588, 7807)]