28105105

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 11811695

約数列:

[1, 5, 7, 35, 53, 109, 139, 265, 371, 545, 695, 763, 973, 1855, 3815, 4865, 5777, 7367, 15151, 28885, 36835, 40439, 51569, 75755, 106057, 202195, 257845, 530285, 803003, 4015015, 5621021, 28105105]

約数ペア:

[(1, 28105105), (5, 5621021), (7, 4015015), (35, 803003), (53, 530285), (109, 257845), (139, 202195), (265, 106057), (371, 75755), (545, 51569), (695, 40439), (763, 36835), (973, 28885), (1855, 15151), (3815, 7367), (4865, 5777)]