25431705

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 49969920

約数和(自身を除く): 24538215

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 43, 45, 65, 117, 129, 135, 195, 215, 337, 351, 387, 559, 585, 645, 1011, 1161, 1677, 1685, 1755, 1935, 2795, 3033, 4381, 5031, 5055, 5805, 8385, 9099, 13143, 14491, 15093, 15165, 21905, 25155, 39429, 43473, 45495, 65715, 72455, 75465, 118287, 130419, 188383, 197145, 217365, 391257, 565149, 591435, 652095, 941915, 1695447, 1956285, 2825745, 5086341, 8477235, 25431705]

約数ペア:

[(1, 25431705), (3, 8477235), (5, 5086341), (9, 2825745), (13, 1956285), (15, 1695447), (27, 941915), (39, 652095), (43, 591435), (45, 565149), (65, 391257), (117, 217365), (129, 197145), (135, 188383), (195, 130419), (215, 118287), (337, 75465), (351, 72455), (387, 65715), (559, 45495), (585, 43473), (645, 39429), (1011, 25155), (1161, 21905), (1677, 15165), (1685, 15093), (1755, 14491), (1935, 13143), (2795, 9099), (3033, 8385), (4381, 5805), (5031, 5055)]