68940475

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{653}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 88556832

約数和(自身を除く): 19616357

約数列:

[1, 5, 25, 41, 103, 205, 515, 653, 1025, 2575, 3265, 4223, 16325, 21115, 26773, 67259, 105575, 133865, 336295, 669325, 1681475, 2757619, 13788095, 68940475]

約数ペア:

[(1, 68940475), (5, 13788095), (25, 2757619), (41, 1681475), (103, 669325), (205, 336295), (515, 133865), (653, 105575), (1025, 67259), (2575, 26773), (3265, 21115), (4223, 16325)]