20820295

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{4663}}^1$

素因数の和:4734

約数の個数: 16

約数和(自身を含む): 26864640

約数和(自身を除く): 6044345

約数列:

[1, 5, 19, 47, 95, 235, 893, 4465, 4663, 23315, 88597, 219161, 442985, 1095805, 4164059, 20820295]

約数ペア:

[(1, 20820295), (5, 4164059), (19, 1095805), (47, 442985), (95, 219161), (235, 88597), (893, 23315), (4465, 4663)]