839776005

素因数分解:

$3^4\times 5^1\times {\mathrm{2073521}}^1$

素因数の和:2073538

約数の個数: 20

約数和(自身を含む): 1505376972

約数和(自身を除く): 665600967

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2073521, 6220563, 10367605, 18661689, 31102815, 55985067, 93308445, 167955201, 279925335, 839776005]

約数ペア:

[(1, 839776005), (3, 279925335), (5, 167955201), (9, 93308445), (15, 55985067), (27, 31102815), (45, 18661689), (81, 10367605), (135, 6220563), (405, 2073521)]