20269675

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 26734400

約数和(自身を除く): 6464725

約数列:

[1, 5, 19, 25, 95, 139, 307, 475, 695, 1535, 2641, 3475, 5833, 7675, 13205, 29165, 42673, 66025, 145825, 213365, 810787, 1066825, 4053935, 20269675]

約数ペア:

[(1, 20269675), (5, 4053935), (19, 1066825), (25, 810787), (95, 213365), (139, 145825), (307, 66025), (475, 42673), (695, 29165), (1535, 13205), (2641, 7675), (3475, 5833)]