215523705

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 382952448

約数和(自身を除く): 167428743

約数列:

[1, 3, 5, 15, 17, 37, 51, 53, 85, 111, 159, 185, 255, 265, 431, 555, 629, 795, 901, 1293, 1887, 1961, 2155, 2703, 3145, 4505, 5883, 6465, 7327, 9435, 9805, 13515, 15947, 21981, 22843, 29415, 33337, 36635, 47841, 68529, 79735, 100011, 109905, 114215, 166685, 239205, 271099, 342645, 388331, 500055, 813297, 845191, 1164993, 1355495, 1941655, 2535573, 4066485, 4225955, 5824965, 12677865, 14368247, 43104741, 71841235, 215523705]

約数ペア:

[(1, 215523705), (3, 71841235), (5, 43104741), (15, 14368247), (17, 12677865), (37, 5824965), (51, 4225955), (53, 4066485), (85, 2535573), (111, 1941655), (159, 1355495), (185, 1164993), (255, 845191), (265, 813297), (431, 500055), (555, 388331), (629, 342645), (795, 271099), (901, 239205), (1293, 166685), (1887, 114215), (1961, 109905), (2155, 100011), (2703, 79735), (3145, 68529), (4505, 47841), (5883, 36635), (6465, 33337), (7327, 29415), (9435, 22843), (9805, 21981), (13515, 15947)]