20107928

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{503}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19808872

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 263, 503, 526, 1006, 1052, 2012, 2104, 4024, 4997, 9557, 9994, 19114, 19988, 38228, 39976, 76456, 132289, 264578, 529156, 1058312, 2513491, 5026982, 10053964, 20107928]

約数ペア:

[(1, 20107928), (2, 10053964), (4, 5026982), (8, 2513491), (19, 1058312), (38, 529156), (76, 264578), (152, 132289), (263, 76456), (503, 39976), (526, 38228), (1006, 19988), (1052, 19114), (2012, 9994), (2104, 9557), (4024, 4997)]