640569601

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{214309}}^1$

素因数の和:214384

約数の個数: 12

約数和(自身を含む): 757371540

約数和(自身を除く): 116801939

約数列:

[1, 7, 49, 61, 427, 2989, 214309, 1500163, 10501141, 13072849, 91509943, 640569601]

約数ペア:

[(1, 640569601), (7, 91509943), (49, 13072849), (61, 10501141), (427, 1500163), (2989, 214309)]