80164580

素因数分解:

$2^2\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{3821}}^1$

素因数の和:4879

約数の個数: 24

約数和(自身を含む): 168550200

約数和(自身を除く): 88385620

約数列:

[1, 2, 4, 5, 10, 20, 1049, 2098, 3821, 4196, 5245, 7642, 10490, 15284, 19105, 20980, 38210, 76420, 4008229, 8016458, 16032916, 20041145, 40082290, 80164580]

約数ペア:

[(1, 80164580), (2, 40082290), (4, 20041145), (5, 16032916), (10, 8016458), (20, 4008229), (1049, 76420), (2098, 38210), (3821, 20980), (4196, 19105), (5245, 15284), (7642, 10490)]