638565340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4561181}}^1$

素因数の和:4561197

約数の個数: 24

約数和(自身を含む): 1532557152

約数和(自身を除く): 893991812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4561181, 9122362, 18244724, 22805905, 31928267, 45611810, 63856534, 91223620, 127713068, 159641335, 319282670, 638565340]

約数ペア:

[(1, 638565340), (2, 319282670), (4, 159641335), (5, 127713068), (7, 91223620), (10, 63856534), (14, 45611810), (20, 31928267), (28, 22805905), (35, 18244724), (70, 9122362), (140, 4561181)]