128455305

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:506

約数の個数: 64

約数和(自身を含む): 235208448

約数和(自身を除く): 106753143

約数列:

[1, 3, 5, 11, 15, 33, 37, 53, 55, 111, 159, 165, 185, 265, 397, 407, 555, 583, 795, 1191, 1221, 1749, 1961, 1985, 2035, 2915, 4367, 5883, 5955, 6105, 8745, 9805, 13101, 14689, 21041, 21571, 21835, 29415, 44067, 63123, 64713, 65505, 73445, 105205, 107855, 161579, 220335, 231451, 315615, 323565, 484737, 694353, 778517, 807895, 1157255, 2335551, 2423685, 3471765, 3892585, 8563687, 11677755, 25691061, 42818435, 128455305]

約数ペア:

[(1, 128455305), (3, 42818435), (5, 25691061), (11, 11677755), (15, 8563687), (33, 3892585), (37, 3471765), (53, 2423685), (55, 2335551), (111, 1157255), (159, 807895), (165, 778517), (185, 694353), (265, 484737), (397, 323565), (407, 315615), (555, 231451), (583, 220335), (795, 161579), (1191, 107855), (1221, 105205), (1749, 73445), (1961, 65505), (1985, 64713), (2035, 63123), (2915, 44067), (4367, 29415), (5883, 21835), (5955, 21571), (6105, 21041), (8745, 14689), (9805, 13101)]