177801988

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2251}}^1$

素因数の和:2313

約数の個数: 72

約数和(自身を含む): 402549504

約数和(自身を除く): 224747516

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 182, 196, 217, 364, 403, 434, 637, 806, 868, 1274, 1519, 1612, 2251, 2548, 2821, 3038, 4502, 5642, 6076, 9004, 11284, 15757, 19747, 29263, 31514, 39494, 58526, 63028, 69781, 78988, 110299, 117052, 139562, 204841, 220598, 279124, 409682, 441196, 488467, 819364, 907153, 976934, 1433887, 1814306, 1953868, 2867774, 3419269, 3628612, 5735548, 6350071, 6838538, 12700142, 13677076, 25400284, 44450497, 88900994, 177801988]

約数ペア:

[(1, 177801988), (2, 88900994), (4, 44450497), (7, 25400284), (13, 13677076), (14, 12700142), (26, 6838538), (28, 6350071), (31, 5735548), (49, 3628612), (52, 3419269), (62, 2867774), (91, 1953868), (98, 1814306), (124, 1433887), (182, 976934), (196, 907153), (217, 819364), (364, 488467), (403, 441196), (434, 409682), (637, 279124), (806, 220598), (868, 204841), (1274, 139562), (1519, 117052), (1612, 110299), (2251, 78988), (2548, 69781), (2821, 63028), (3038, 58526), (4502, 39494), (5642, 31514), (6076, 29263), (9004, 19747), (11284, 15757)]