39886490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{81401}}^1$

素因数の和:81422

約数の個数: 24

約数和(自身を含む): 83518452

約数和(自身を除く): 43631962

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 81401, 162802, 407005, 569807, 814010, 1139614, 2849035, 3988649, 5698070, 7977298, 19943245, 39886490]

約数ペア:

[(1, 39886490), (2, 19943245), (5, 7977298), (7, 5698070), (10, 3988649), (14, 2849035), (35, 1139614), (49, 814010), (70, 569807), (98, 407005), (245, 162802), (490, 81401)]