71854345

素因数分解:

$5^1\times {\mathrm{41}}^2\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 90312768

約数和(自身を除く): 18458423

約数列:

[1, 5, 41, 83, 103, 205, 415, 515, 1681, 3403, 4223, 8405, 8549, 17015, 21115, 42745, 139523, 173143, 350509, 697615, 865715, 1752545, 14370869, 71854345]

約数ペア:

[(1, 71854345), (5, 14370869), (41, 1752545), (83, 865715), (103, 697615), (205, 350509), (415, 173143), (515, 139523), (1681, 42745), (3403, 21115), (4223, 17015), (8405, 8549)]