81871328

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:400

約数の個数: 96

約数和(自身を含む): 203212800

約数和(自身を除く): 121341472

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 149, 154, 176, 223, 224, 298, 308, 352, 446, 596, 616, 892, 1043, 1192, 1232, 1561, 1639, 1784, 2086, 2384, 2453, 2464, 3122, 3278, 3568, 4172, 4768, 4906, 6244, 6556, 7136, 8344, 9812, 11473, 12488, 13112, 16688, 17171, 19624, 22946, 24976, 26224, 33227, 33376, 34342, 39248, 45892, 49952, 52448, 66454, 68684, 78496, 91784, 132908, 137368, 183568, 232589, 265816, 274736, 365497, 367136, 465178, 531632, 549472, 730994, 930356, 1063264, 1461988, 1860712, 2558479, 2923976, 3721424, 5116958, 5847952, 7442848, 10233916, 11695904, 20467832, 40935664, 81871328]

約数ペア:

[(1, 81871328), (2, 40935664), (4, 20467832), (7, 11695904), (8, 10233916), (11, 7442848), (14, 5847952), (16, 5116958), (22, 3721424), (28, 2923976), (32, 2558479), (44, 1860712), (56, 1461988), (77, 1063264), (88, 930356), (112, 730994), (149, 549472), (154, 531632), (176, 465178), (223, 367136), (224, 365497), (298, 274736), (308, 265816), (352, 232589), (446, 183568), (596, 137368), (616, 132908), (892, 91784), (1043, 78496), (1192, 68684), (1232, 66454), (1561, 52448), (1639, 49952), (1784, 45892), (2086, 39248), (2384, 34342), (2453, 33376), (2464, 33227), (3122, 26224), (3278, 24976), (3568, 22946), (4172, 19624), (4768, 17171), (4906, 16688), (6244, 13112), (6556, 12488), (7136, 11473), (8344, 9812)]