20730292

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 42194880

約数和(自身を除く): 21464588

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 137, 181, 209, 274, 362, 418, 548, 724, 836, 1507, 1991, 2603, 3014, 3439, 3982, 5206, 6028, 6878, 7964, 10412, 13756, 24797, 28633, 37829, 49594, 57266, 75658, 99188, 114532, 151316, 272767, 471143, 545534, 942286, 1091068, 1884572, 5182573, 10365146, 20730292]

約数ペア:

[(1, 20730292), (2, 10365146), (4, 5182573), (11, 1884572), (19, 1091068), (22, 942286), (38, 545534), (44, 471143), (76, 272767), (137, 151316), (181, 114532), (209, 99188), (274, 75658), (362, 57266), (418, 49594), (548, 37829), (724, 28633), (836, 24797), (1507, 13756), (1991, 10412), (2603, 7964), (3014, 6878), (3439, 6028), (3982, 5206)]