131017840

素因数分解:

$2^4\times 5^1\times {\mathrm{1637723}}^1$

素因数の和:1637736

約数の個数: 20

約数和(自身を含む): 304616664

約数和(自身を除く): 173598824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1637723, 3275446, 6550892, 8188615, 13101784, 16377230, 26203568, 32754460, 65508920, 131017840]

約数ペア:

[(1, 131017840), (2, 65508920), (4, 32754460), (5, 26203568), (8, 16377230), (10, 13101784), (16, 8188615), (20, 6550892), (40, 3275446), (80, 1637723)]