81860075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{15667}}^1$

素因数の和:15707

約数の個数: 24

約数和(自身を含む): 116569920

約数和(自身を除く): 34709845

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 5225, 15667, 78335, 172337, 297673, 391675, 861685, 1488365, 3274403, 4308425, 7441825, 16372015, 81860075]

約数ペア:

[(1, 81860075), (5, 16372015), (11, 7441825), (19, 4308425), (25, 3274403), (55, 1488365), (95, 861685), (209, 391675), (275, 297673), (475, 172337), (1045, 78335), (5225, 15667)]