20740405

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{13781}}^1$

素因数の和:13836

約数の個数: 16

約数和(自身を含む): 29107584

約数和(自身を除く): 8367179

約数列:

[1, 5, 7, 35, 43, 215, 301, 1505, 13781, 68905, 96467, 482335, 592583, 2962915, 4148081, 20740405]

約数ペア:

[(1, 20740405), (5, 4148081), (7, 2962915), (35, 592583), (43, 482335), (215, 96467), (301, 68905), (1505, 13781)]