20165904125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{1291}}^1\times {\mathrm{6577}}^1$

素因数の和:7902

約数の個数: 32

約数和(自身を含む): 26516181120

約数和(自身を除く): 6350276995

約数列:

[1, 5, 19, 25, 95, 125, 475, 1291, 2375, 6455, 6577, 24529, 32275, 32885, 122645, 124963, 161375, 164425, 613225, 624815, 822125, 3066125, 3124075, 8490907, 15620375, 42454535, 161327233, 212272675, 806636165, 1061363375, 4033180825, 20165904125]

約数ペア:

[(1, 20165904125), (5, 4033180825), (19, 1061363375), (25, 806636165), (95, 212272675), (125, 161327233), (475, 42454535), (1291, 15620375), (2375, 8490907), (6455, 3124075), (6577, 3066125), (24529, 822125), (32275, 624815), (32885, 613225), (122645, 164425), (124963, 161375)]