18988595

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{601}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 23405760

約数和(自身を除く): 4417165

約数列:

[1, 5, 71, 89, 355, 445, 601, 3005, 6319, 31595, 42671, 53489, 213355, 267445, 3797719, 18988595]

約数ペア:

[(1, 18988595), (5, 3797719), (71, 267445), (89, 213355), (355, 53489), (445, 42671), (601, 31595), (3005, 6319)]