81756125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1607}}^1$

素因数の和:1670

約数の個数: 32

約数和(自身を含む): 114386688

約数和(自身を除く): 32630563

約数列:

[1, 5, 11, 25, 37, 55, 125, 185, 275, 407, 925, 1375, 1607, 2035, 4625, 8035, 10175, 17677, 40175, 50875, 59459, 88385, 200875, 297295, 441925, 654049, 1486475, 2209625, 3270245, 7432375, 16351225, 81756125]

約数ペア:

[(1, 81756125), (5, 16351225), (11, 7432375), (25, 3270245), (37, 2209625), (55, 1486475), (125, 654049), (185, 441925), (275, 297295), (407, 200875), (925, 88385), (1375, 59459), (1607, 50875), (2035, 40175), (4625, 17677), (8035, 10175)]