20018096

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:466

約数の個数: 80

約数和(自身を含む): 48806400

約数和(自身を除く): 28788304

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, 409, 437, 532, 644, 818, 874, 1064, 1288, 1636, 1748, 2128, 2576, 2863, 3059, 3272, 3496, 5726, 6118, 6544, 6992, 7771, 9407, 11452, 12236, 15542, 18814, 22904, 24472, 31084, 37628, 45808, 48944, 54397, 62168, 65849, 75256, 108794, 124336, 131698, 150512, 178733, 217588, 263396, 357466, 435176, 526792, 714932, 870352, 1053584, 1251131, 1429864, 2502262, 2859728, 5004524, 10009048, 20018096]

約数ペア:

[(1, 20018096), (2, 10009048), (4, 5004524), (7, 2859728), (8, 2502262), (14, 1429864), (16, 1251131), (19, 1053584), (23, 870352), (28, 714932), (38, 526792), (46, 435176), (56, 357466), (76, 263396), (92, 217588), (112, 178733), (133, 150512), (152, 131698), (161, 124336), (184, 108794), (266, 75256), (304, 65849), (322, 62168), (368, 54397), (409, 48944), (437, 45808), (532, 37628), (644, 31084), (818, 24472), (874, 22904), (1064, 18814), (1288, 15542), (1636, 12236), (1748, 11452), (2128, 9407), (2576, 7771), (2863, 6992), (3059, 6544), (3272, 6118), (3496, 5726)]