80629070

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{20107}}^1$

素因数の和:20515

約数の個数: 16

約数和(自身を含む): 145501488

約数和(自身を除く): 64872418

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 20107, 40214, 100535, 201070, 8062907, 16125814, 40314535, 80629070]

約数ペア:

[(1, 80629070), (2, 40314535), (5, 16125814), (10, 8062907), (401, 201070), (802, 100535), (2005, 40214), (4010, 20107)]