20158075

素因数分解:

$5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{907}}^1$

素因数の和:1051

約数の個数: 24

約数和(自身を含む): 28823552

約数和(自身を除く): 8665477

約数列:

[1, 5, 7, 25, 35, 127, 175, 635, 889, 907, 3175, 4445, 4535, 6349, 22225, 22675, 31745, 115189, 158725, 575945, 806323, 2879725, 4031615, 20158075]

約数ペア:

[(1, 20158075), (5, 4031615), (7, 2879725), (25, 806323), (35, 575945), (127, 158725), (175, 115189), (635, 31745), (889, 22675), (907, 22225), (3175, 6349), (4445, 4535)]