80375620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{309137}}^1$

素因数の和:309159

約数の個数: 24

約数和(自身を含む): 181773144

約数和(自身を除く): 101397524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 309137, 618274, 1236548, 1545685, 3091370, 4018781, 6182740, 8037562, 16075124, 20093905, 40187810, 80375620]

約数ペア:

[(1, 80375620), (2, 40187810), (4, 20093905), (5, 16075124), (10, 8037562), (13, 6182740), (20, 4018781), (26, 3091370), (52, 1545685), (65, 1236548), (130, 618274), (260, 309137)]