20075075

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 25779600

約数和(自身を除く): 5704525

約数列:

[1, 5, 25, 53, 109, 139, 265, 545, 695, 1325, 2725, 3475, 5777, 7367, 15151, 28885, 36835, 75755, 144425, 184175, 378775, 803003, 4015015, 20075075]

約数ペア:

[(1, 20075075), (5, 4015015), (25, 803003), (53, 378775), (109, 184175), (139, 144425), (265, 75755), (545, 36835), (695, 28885), (1325, 15151), (2725, 7367), (3475, 5777)]