20118085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7549}}^1$

素因数の和:7608

約数の個数: 16

約数和(自身を含む): 26636400

約数和(自身を除く): 6518315

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 7549, 37745, 98137, 309509, 490685, 1547545, 4023617, 20118085]

約数ペア:

[(1, 20118085), (5, 4023617), (13, 1547545), (41, 490685), (65, 309509), (205, 98137), (533, 37745), (2665, 7549)]