201991888

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4127}}^1$

素因数の和:4184

約数の個数: 80

約数和(自身を含む): 491397120

約数和(自身を除く): 289405232

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 23, 28, 38, 46, 56, 76, 92, 112, 133, 152, 161, 184, 266, 304, 322, 368, 437, 532, 644, 874, 1064, 1288, 1748, 2128, 2576, 3059, 3496, 4127, 6118, 6992, 8254, 12236, 16508, 24472, 28889, 33016, 48944, 57778, 66032, 78413, 94921, 115556, 156826, 189842, 231112, 313652, 379684, 462224, 548891, 627304, 664447, 759368, 1097782, 1254608, 1328894, 1518736, 1803499, 2195564, 2657788, 3606998, 4391128, 5315576, 7213996, 8782256, 10631152, 12624493, 14427992, 25248986, 28855984, 50497972, 100995944, 201991888]

約数ペア:

[(1, 201991888), (2, 100995944), (4, 50497972), (7, 28855984), (8, 25248986), (14, 14427992), (16, 12624493), (19, 10631152), (23, 8782256), (28, 7213996), (38, 5315576), (46, 4391128), (56, 3606998), (76, 2657788), (92, 2195564), (112, 1803499), (133, 1518736), (152, 1328894), (161, 1254608), (184, 1097782), (266, 759368), (304, 664447), (322, 627304), (368, 548891), (437, 462224), (532, 379684), (644, 313652), (874, 231112), (1064, 189842), (1288, 156826), (1748, 115556), (2128, 94921), (2576, 78413), (3059, 66032), (3496, 57778), (4127, 48944), (6118, 33016), (6992, 28889), (8254, 24472), (12236, 16508)]