20368085

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{397}}^1$

素因数の和:764

約数の個数: 16

約数和(自身を含む): 25370112

約数和(自身を除く): 5002027

約数列:

[1, 5, 31, 155, 331, 397, 1655, 1985, 10261, 12307, 51305, 61535, 131407, 657035, 4073617, 20368085]

約数ペア:

[(1, 20368085), (5, 4073617), (31, 657035), (155, 131407), (331, 61535), (397, 51305), (1655, 12307), (1985, 10261)]