65806025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 91660800

約数和(自身を除く): 25854775

約数列:

[1, 5, 19, 25, 31, 41, 95, 109, 155, 205, 475, 545, 589, 775, 779, 1025, 1271, 2071, 2725, 2945, 3379, 3895, 4469, 6355, 10355, 14725, 16895, 19475, 22345, 24149, 31775, 51775, 64201, 84475, 84911, 111725, 120745, 138539, 321005, 424555, 603725, 692695, 1605025, 2122775, 2632241, 3463475, 13161205, 65806025]

約数ペア:

[(1, 65806025), (5, 13161205), (19, 3463475), (25, 2632241), (31, 2122775), (41, 1605025), (95, 692695), (109, 603725), (155, 424555), (205, 321005), (475, 138539), (545, 120745), (589, 111725), (775, 84911), (779, 84475), (1025, 64201), (1271, 51775), (2071, 31775), (2725, 24149), (2945, 22345), (3379, 19475), (3895, 16895), (4469, 14725), (6355, 10355)]