25854556

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 57870960

約数和(自身を除く): 32016404

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 73, 91, 98, 139, 146, 182, 196, 278, 292, 364, 511, 556, 637, 949, 973, 1022, 1274, 1807, 1898, 1946, 2044, 2548, 3577, 3614, 3796, 3892, 6643, 6811, 7154, 7228, 10147, 12649, 13286, 13622, 14308, 20294, 25298, 26572, 27244, 40588, 46501, 50596, 71029, 88543, 93002, 131911, 142058, 177086, 186004, 263822, 284116, 354172, 497203, 527644, 923377, 994406, 1846754, 1988812, 3693508, 6463639, 12927278, 25854556]

約数ペア:

[(1, 25854556), (2, 12927278), (4, 6463639), (7, 3693508), (13, 1988812), (14, 1846754), (26, 994406), (28, 923377), (49, 527644), (52, 497203), (73, 354172), (91, 284116), (98, 263822), (139, 186004), (146, 177086), (182, 142058), (196, 131911), (278, 93002), (292, 88543), (364, 71029), (511, 50596), (556, 46501), (637, 40588), (949, 27244), (973, 26572), (1022, 25298), (1274, 20294), (1807, 14308), (1898, 13622), (1946, 13286), (2044, 12649), (2548, 10147), (3577, 7228), (3614, 7154), (3796, 6811), (3892, 6643)]