18820639655

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{363719}}^1$

素因数の和:363934

約数の個数: 16

約数和(自身を含む): 23045299200

約数和(自身を除く): 4224659545

約数列:

[1, 5, 79, 131, 395, 655, 10349, 51745, 363719, 1818595, 28733801, 47647189, 143669005, 238235945, 3764127931, 18820639655]

約数ペア:

[(1, 18820639655), (5, 3764127931), (79, 238235945), (131, 143669005), (395, 47647189), (655, 28733801), (10349, 1818595), (51745, 363719)]