80387140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{25601}}^1$

素因数の和:25767

約数の個数: 24

約数和(自身を含む): 169894872

約数和(自身を除く): 89507732

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 25601, 51202, 102404, 128005, 256010, 512020, 4019357, 8038714, 16077428, 20096785, 40193570, 80387140]

約数ペア:

[(1, 80387140), (2, 40193570), (4, 20096785), (5, 16077428), (10, 8038714), (20, 4019357), (157, 512020), (314, 256010), (628, 128005), (785, 102404), (1570, 51202), (3140, 25601)]