86990655

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{757}}^1$

素因数の和:975

約数の個数: 32

約数和(自身を含む): 143207424

約数和(自身を除く): 56216769

約数列:

[1, 3, 5, 15, 47, 141, 163, 235, 489, 705, 757, 815, 2271, 2445, 3785, 7661, 11355, 22983, 35579, 38305, 106737, 114915, 123391, 177895, 370173, 533685, 616955, 1850865, 5799377, 17398131, 28996885, 86990655]

約数ペア:

[(1, 86990655), (3, 28996885), (5, 17398131), (15, 5799377), (47, 1850865), (141, 616955), (163, 533685), (235, 370173), (489, 177895), (705, 123391), (757, 114915), (815, 106737), (2271, 38305), (2445, 35579), (3785, 22983), (7661, 11355)]