256408075

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12109}}^1$

素因数の和:12148

約数の個数: 36

約数和(自身を含む): 399436240

約数和(自身を除く): 143028165

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 121, 175, 275, 385, 605, 847, 1925, 3025, 4235, 12109, 21175, 60545, 84763, 133199, 302725, 423815, 665995, 932393, 1465189, 2119075, 3329975, 4661965, 7325945, 10256323, 23309825, 36629725, 51281615, 256408075]

約数ペア:

[(1, 256408075), (5, 51281615), (7, 36629725), (11, 23309825), (25, 10256323), (35, 7325945), (55, 4661965), (77, 3329975), (121, 2119075), (175, 1465189), (275, 932393), (385, 665995), (605, 423815), (847, 302725), (1925, 133199), (3025, 84763), (4235, 60545), (12109, 21175)]