81166955

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{4337}}^1$

素因数の和:4558

約数の個数: 16

約数和(自身を含む): 103070880

約数和(自身を除く): 21903925

約数列:

[1, 5, 19, 95, 197, 985, 3743, 4337, 18715, 21685, 82403, 412015, 854389, 4271945, 16233391, 81166955]

約数ペア:

[(1, 81166955), (5, 16233391), (19, 4271945), (95, 854389), (197, 412015), (985, 82403), (3743, 21685), (4337, 18715)]