18402860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131449}}^1$

素因数の和:131465

約数の個数: 24

約数和(自身を含む): 44167200

約数和(自身を除く): 25764340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 131449, 262898, 525796, 657245, 920143, 1314490, 1840286, 2628980, 3680572, 4600715, 9201430, 18402860]

約数ペア:

[(1, 18402860), (2, 9201430), (4, 4600715), (5, 3680572), (7, 2628980), (10, 1840286), (14, 1314490), (20, 920143), (28, 657245), (35, 525796), (70, 262898), (140, 131449)]