199972568

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^2$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 419145300

約数和(自身を除く): 219172732

約数列:

[1, 2, 4, 8, 19, 31, 37, 38, 62, 74, 76, 124, 148, 152, 248, 296, 589, 703, 961, 1147, 1178, 1369, 1406, 1922, 2294, 2356, 2738, 2812, 3844, 4588, 4712, 5476, 5624, 7688, 9176, 10952, 18259, 21793, 26011, 35557, 36518, 42439, 43586, 52022, 71114, 73036, 84878, 87172, 104044, 142228, 146072, 169756, 174344, 208088, 284456, 339512, 675583, 806341, 1315609, 1351166, 1612682, 2631218, 2702332, 3225364, 5262436, 5404664, 6450728, 10524872, 24996571, 49993142, 99986284, 199972568]

約数ペア:

[(1, 199972568), (2, 99986284), (4, 49993142), (8, 24996571), (19, 10524872), (31, 6450728), (37, 5404664), (38, 5262436), (62, 3225364), (74, 2702332), (76, 2631218), (124, 1612682), (148, 1351166), (152, 1315609), (248, 806341), (296, 675583), (589, 339512), (703, 284456), (961, 208088), (1147, 174344), (1178, 169756), (1369, 146072), (1406, 142228), (1922, 104044), (2294, 87172), (2356, 84878), (2738, 73036), (2812, 71114), (3844, 52022), (4588, 43586), (4712, 42439), (5476, 36518), (5624, 35557), (7688, 26011), (9176, 21793), (10952, 18259)]