256394238

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1657}}^1$

素因数の和:1757

約数の個数: 64

約数和(自身を含む): 571572288

約数和(自身を除く): 315178050

約数列:

[1, 2, 3, 6, 17, 34, 37, 41, 51, 74, 82, 102, 111, 123, 222, 246, 629, 697, 1258, 1394, 1517, 1657, 1887, 2091, 3034, 3314, 3774, 4182, 4551, 4971, 9102, 9942, 25789, 28169, 51578, 56338, 61309, 67937, 77367, 84507, 122618, 135874, 154734, 169014, 183927, 203811, 367854, 407622, 1042253, 1154929, 2084506, 2309858, 2513669, 3126759, 3464787, 5027338, 6253518, 6929574, 7541007, 15082014, 42732373, 85464746, 128197119, 256394238]

約数ペア:

[(1, 256394238), (2, 128197119), (3, 85464746), (6, 42732373), (17, 15082014), (34, 7541007), (37, 6929574), (41, 6253518), (51, 5027338), (74, 3464787), (82, 3126759), (102, 2513669), (111, 2309858), (123, 2084506), (222, 1154929), (246, 1042253), (629, 407622), (697, 367854), (1258, 203811), (1394, 183927), (1517, 169014), (1657, 154734), (1887, 135874), (2091, 122618), (3034, 84507), (3314, 77367), (3774, 67937), (4182, 61309), (4551, 56338), (4971, 51578), (9102, 28169), (9942, 25789)]