1209872015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{34211}}^1$

素因数の和:34870

約数の個数: 16

約数和(自身を含む): 1586342016

約数和(自身を除く): 376470001

約数列:

[1, 5, 11, 55, 643, 3215, 7073, 34211, 35365, 171055, 376321, 1881605, 21997673, 109988365, 241974403, 1209872015]

約数ペア:

[(1, 1209872015), (5, 241974403), (11, 109988365), (55, 21997673), (643, 1881605), (3215, 376321), (7073, 171055), (34211, 35365)]