20078764

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{1091}}^1$

素因数の和:1245

約数の個数: 24

約数和(自身を含む): 36324288

約数和(自身を除く): 16245524

約数列:

[1, 2, 4, 43, 86, 107, 172, 214, 428, 1091, 2182, 4364, 4601, 9202, 18404, 46913, 93826, 116737, 187652, 233474, 466948, 5019691, 10039382, 20078764]

約数ペア:

[(1, 20078764), (2, 10039382), (4, 5019691), (43, 466948), (86, 233474), (107, 187652), (172, 116737), (214, 93826), (428, 46913), (1091, 18404), (2182, 9202), (4364, 4601)]