81054428

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{2447}}^1$

素因数の和:2491

約数の個数: 54

約数和(自身を含む): 178745616

約数和(自身を除く): 97691188

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, 2447, 2548, 4732, 4894, 8281, 9788, 16562, 17129, 31811, 33124, 34258, 63622, 68516, 119903, 127244, 222677, 239806, 413543, 445354, 479612, 827086, 890708, 1558739, 1654172, 2894801, 3117478, 5789602, 6234956, 11579204, 20263607, 40527214, 81054428]

約数ペア:

[(1, 81054428), (2, 40527214), (4, 20263607), (7, 11579204), (13, 6234956), (14, 5789602), (26, 3117478), (28, 2894801), (49, 1654172), (52, 1558739), (91, 890708), (98, 827086), (169, 479612), (182, 445354), (196, 413543), (338, 239806), (364, 222677), (637, 127244), (676, 119903), (1183, 68516), (1274, 63622), (2366, 34258), (2447, 33124), (2548, 31811), (4732, 17129), (4894, 16562), (8281, 9788)]