39894020

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3083}}^1$

素因数の和:3739

約数の個数: 24

約数和(自身を含む): 83934144

約数和(自身を除く): 44040124

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3083, 3235, 6166, 6470, 12332, 12940, 15415, 30830, 61660, 1994701, 3989402, 7978804, 9973505, 19947010, 39894020]

約数ペア:

[(1, 39894020), (2, 19947010), (4, 9973505), (5, 7978804), (10, 3989402), (20, 1994701), (647, 61660), (1294, 30830), (2588, 15415), (3083, 12940), (3235, 12332), (6166, 6470)]