20384595

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 128

約数和(自身を含む): 47278080

約数和(自身を除く): 26893485

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 37, 45, 53, 55, 63, 77, 99, 105, 111, 135, 159, 165, 185, 189, 231, 259, 265, 297, 315, 333, 371, 385, 407, 477, 495, 555, 583, 693, 777, 795, 945, 999, 1113, 1155, 1221, 1295, 1431, 1485, 1665, 1749, 1855, 1961, 2035, 2079, 2331, 2385, 2849, 2915, 3339, 3465, 3663, 3885, 4081, 4995, 5247, 5565, 5883, 6105, 6993, 7155, 8547, 8745, 9805, 10017, 10395, 10989, 11655, 12243, 13727, 14245, 15741, 16695, 17649, 18315, 20405, 21571, 25641, 26235, 29415, 34965, 36729, 41181, 42735, 50085, 52947, 54945, 61215, 64713, 68635, 76923, 78705, 88245, 107855, 110187, 123543, 128205, 150997, 183645, 194139, 205905, 264735, 323565, 370629, 384615, 452991, 550935, 582417, 617715, 754985, 970695, 1358973, 1853145, 2264955, 2912085, 4076919, 6794865, 20384595]

約数ペア:

[(1, 20384595), (3, 6794865), (5, 4076919), (7, 2912085), (9, 2264955), (11, 1853145), (15, 1358973), (21, 970695), (27, 754985), (33, 617715), (35, 582417), (37, 550935), (45, 452991), (53, 384615), (55, 370629), (63, 323565), (77, 264735), (99, 205905), (105, 194139), (111, 183645), (135, 150997), (159, 128205), (165, 123543), (185, 110187), (189, 107855), (231, 88245), (259, 78705), (265, 76923), (297, 68635), (315, 64713), (333, 61215), (371, 54945), (385, 52947), (407, 50085), (477, 42735), (495, 41181), (555, 36729), (583, 34965), (693, 29415), (777, 26235), (795, 25641), (945, 21571), (999, 20405), (1113, 18315), (1155, 17649), (1221, 16695), (1295, 15741), (1431, 14245), (1485, 13727), (1665, 12243), (1749, 11655), (1855, 10989), (1961, 10395), (2035, 10017), (2079, 9805), (2331, 8745), (2385, 8547), (2849, 7155), (2915, 6993), (3339, 6105), (3465, 5883), (3663, 5565), (3885, 5247), (4081, 4995)]