20505864

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{233}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 54475200

約数和(自身を除く): 33969336

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 193, 228, 233, 386, 456, 466, 579, 699, 772, 932, 1158, 1398, 1544, 1864, 2316, 2796, 3667, 4427, 4632, 5592, 7334, 8854, 11001, 13281, 14668, 17708, 22002, 26562, 29336, 35416, 44004, 44969, 53124, 88008, 89938, 106248, 134907, 179876, 269814, 359752, 539628, 854411, 1079256, 1708822, 2563233, 3417644, 5126466, 6835288, 10252932, 20505864]

約数ペア:

[(1, 20505864), (2, 10252932), (3, 6835288), (4, 5126466), (6, 3417644), (8, 2563233), (12, 1708822), (19, 1079256), (24, 854411), (38, 539628), (57, 359752), (76, 269814), (114, 179876), (152, 134907), (193, 106248), (228, 89938), (233, 88008), (386, 53124), (456, 44969), (466, 44004), (579, 35416), (699, 29336), (772, 26562), (932, 22002), (1158, 17708), (1398, 14668), (1544, 13281), (1864, 11001), (2316, 8854), (2796, 7334), (3667, 5592), (4427, 4632)]