257899278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{2473}}^1$

素因数の和:2689

約数の個数: 64

約数和(自身を含む): 638410752

約数和(自身を除く): 380511474

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 191, 273, 382, 546, 573, 1146, 1337, 2473, 2483, 2674, 4011, 4946, 4966, 7419, 7449, 8022, 14838, 14898, 17311, 17381, 32149, 34622, 34762, 51933, 52143, 64298, 96447, 103866, 104286, 192894, 225043, 450086, 472343, 675129, 944686, 1350258, 1417029, 2834058, 3306401, 6140459, 6612802, 9919203, 12280918, 18421377, 19838406, 36842754, 42983213, 85966426, 128949639, 257899278]

約数ペア:

[(1, 257899278), (2, 128949639), (3, 85966426), (6, 42983213), (7, 36842754), (13, 19838406), (14, 18421377), (21, 12280918), (26, 9919203), (39, 6612802), (42, 6140459), (78, 3306401), (91, 2834058), (182, 1417029), (191, 1350258), (273, 944686), (382, 675129), (546, 472343), (573, 450086), (1146, 225043), (1337, 192894), (2473, 104286), (2483, 103866), (2674, 96447), (4011, 64298), (4946, 52143), (4966, 51933), (7419, 34762), (7449, 34622), (8022, 32149), (14838, 17381), (14898, 17311)]