19009975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1291}}^1$

素因数の和:1351

約数の個数: 24

約数和(自身を含む): 25633280

約数和(自身を除く): 6623305

約数列:

[1, 5, 19, 25, 31, 95, 155, 475, 589, 775, 1291, 2945, 6455, 14725, 24529, 32275, 40021, 122645, 200105, 613225, 760399, 1000525, 3801995, 19009975]

約数ペア:

[(1, 19009975), (5, 3801995), (19, 1000525), (25, 760399), (31, 613225), (95, 200105), (155, 122645), (475, 40021), (589, 32275), (775, 24529), (1291, 14725), (2945, 6455)]