19680485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{509}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 27907200

約数和(自身を除く): 8226715

約数列:

[1, 5, 11, 19, 37, 55, 95, 185, 209, 407, 509, 703, 1045, 2035, 2545, 3515, 5599, 7733, 9671, 18833, 27995, 38665, 48355, 94165, 106381, 207163, 357827, 531905, 1035815, 1789135, 3936097, 19680485]

約数ペア:

[(1, 19680485), (5, 3936097), (11, 1789135), (19, 1035815), (37, 531905), (55, 357827), (95, 207163), (185, 106381), (209, 94165), (407, 48355), (509, 38665), (703, 27995), (1045, 18833), (2035, 9671), (2545, 7733), (3515, 5599)]