640081618

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{4561}}^1\times {\mathrm{6379}}^1$

素因数の和:10953

約数の個数: 16

約数和(自身を含む): 1047800160

約数和(自身を除く): 407718542

約数列:

[1, 2, 11, 22, 4561, 6379, 9122, 12758, 50171, 70169, 100342, 140338, 29094619, 58189238, 320040809, 640081618]

約数ペア:

[(1, 640081618), (2, 320040809), (11, 58189238), (22, 29094619), (4561, 140338), (6379, 100342), (9122, 70169), (12758, 50171)]