215775

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{137}}^1$

素因数の和:160

約数の個数: 36

約数和(自身を含む): 444912

約数和(自身を除く): 229137

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 137, 175, 225, 315, 411, 525, 685, 959, 1233, 1575, 2055, 2877, 3425, 4795, 6165, 8631, 10275, 14385, 23975, 30825, 43155, 71925, 215775]

約数ペア:

[(1, 215775), (3, 71925), (5, 43155), (7, 30825), (9, 23975), (15, 14385), (21, 10275), (25, 8631), (35, 6165), (45, 4795), (63, 3425), (75, 2877), (105, 2055), (137, 1575), (175, 1233), (225, 959), (315, 685), (411, 525)]