90202405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 119116800

約数和(自身を除く): 28914395

約数列:

[1, 5, 19, 31, 95, 109, 155, 281, 545, 589, 1405, 2071, 2945, 3379, 5339, 8711, 10355, 16895, 26695, 30629, 43555, 64201, 153145, 165509, 321005, 581951, 827545, 949499, 2909755, 4747495, 18040481, 90202405]

約数ペア:

[(1, 90202405), (5, 18040481), (19, 4747495), (31, 2909755), (95, 949499), (109, 827545), (155, 581951), (281, 321005), (545, 165509), (589, 153145), (1405, 64201), (2071, 43555), (2945, 30629), (3379, 26695), (5339, 16895), (8711, 10355)]