20153515

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{1289}}^1$

素因数の和:1406

約数の個数: 16

約数和(自身を含む): 25077600

約数和(自身を除く): 4924085

約数列:

[1, 5, 53, 59, 265, 295, 1289, 3127, 6445, 15635, 68317, 76051, 341585, 380255, 4030703, 20153515]

約数ペア:

[(1, 20153515), (5, 4030703), (53, 380255), (59, 341585), (265, 76051), (295, 68317), (1289, 15635), (3127, 6445)]