18204095

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{40009}}^1$

素因数の和:40034

約数の個数: 16

約数和(自身を含む): 26886720

約数和(自身を除く): 8682625

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 40009, 200045, 280063, 520117, 1400315, 2600585, 3640819, 18204095]

約数ペア:

[(1, 18204095), (5, 3640819), (7, 2600585), (13, 1400315), (35, 520117), (65, 280063), (91, 200045), (455, 40009)]