81716908

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{2467}}^1$

素因数の和:2511

約数の個数: 54

約数和(自身を含む): 180205956

約数和(自身を除く): 98489048

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 169, 182, 196, 338, 364, 637, 676, 1183, 1274, 2366, 2467, 2548, 4732, 4934, 8281, 9868, 16562, 17269, 32071, 33124, 34538, 64142, 69076, 120883, 128284, 224497, 241766, 416923, 448994, 483532, 833846, 897988, 1571479, 1667692, 2918461, 3142958, 5836922, 6285916, 11673844, 20429227, 40858454, 81716908]

約数ペア:

[(1, 81716908), (2, 40858454), (4, 20429227), (7, 11673844), (13, 6285916), (14, 5836922), (26, 3142958), (28, 2918461), (49, 1667692), (52, 1571479), (91, 897988), (98, 833846), (169, 483532), (182, 448994), (196, 416923), (338, 241766), (364, 224497), (637, 128284), (676, 120883), (1183, 69076), (1274, 64142), (2366, 34538), (2467, 33124), (2548, 32071), (4732, 17269), (4934, 16562), (8281, 9868)]