20785505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{3593}}^1$

素因数の和:3700

約数の個数: 16

約数和(自身を含む): 27170640

約数和(自身を除く): 6385135

約数列:

[1, 5, 13, 65, 89, 445, 1157, 3593, 5785, 17965, 46709, 233545, 319777, 1598885, 4157101, 20785505]

約数ペア:

[(1, 20785505), (5, 4157101), (13, 1598885), (65, 319777), (89, 233545), (445, 46709), (1157, 17965), (3593, 5785)]