20178880078

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{30666991}}^1$

素因数の和:30667047

約数の個数: 16

約数和(自身を含む): 35328374784

約数和(自身を除く): 15149494706

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 30666991, 61333982, 214668937, 429337874, 1441348577, 2882697154, 10089440039, 20178880078]

約数ペア:

[(1, 20178880078), (2, 10089440039), (7, 2882697154), (14, 1441348577), (47, 429337874), (94, 214668937), (329, 61333982), (658, 30666991)]