8130520

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1123}}^1$

素因数の和:1315

約数の個数: 32

約数和(自身を含む): 18411120

約数和(自身を除く): 10280600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1123, 1448, 1810, 2246, 3620, 4492, 5615, 7240, 8984, 11230, 22460, 44920, 203263, 406526, 813052, 1016315, 1626104, 2032630, 4065260, 8130520]

約数ペア:

[(1, 8130520), (2, 4065260), (4, 2032630), (5, 1626104), (8, 1016315), (10, 813052), (20, 406526), (40, 203263), (181, 44920), (362, 22460), (724, 11230), (905, 8984), (1123, 7240), (1448, 5615), (1810, 4492), (2246, 3620)]