39897020

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19751}}^1$

素因数の和:19861

約数の個数: 24

約数和(自身を含む): 84617568

約数和(自身を除く): 44720548

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 19751, 39502, 79004, 98755, 197510, 395020, 1994851, 3989702, 7979404, 9974255, 19948510, 39897020]

約数ペア:

[(1, 39897020), (2, 19948510), (4, 9974255), (5, 7979404), (10, 3989702), (20, 1994851), (101, 395020), (202, 197510), (404, 98755), (505, 79004), (1010, 39502), (2020, 19751)]