71381730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^4\times {\mathrm{991}}^1$

素因数の和:1029

約数の個数: 80

約数和(自身を含む): 200058624

約数和(自身を除く): 128676894

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 343, 490, 686, 735, 991, 1029, 1470, 1715, 1982, 2058, 2401, 2973, 3430, 4802, 4955, 5145, 5946, 6937, 7203, 9910, 10290, 12005, 13874, 14406, 14865, 20811, 24010, 29730, 34685, 36015, 41622, 48559, 69370, 72030, 97118, 104055, 145677, 208110, 242795, 291354, 339913, 485590, 679826, 728385, 1019739, 1456770, 1699565, 2039478, 2379391, 3399130, 4758782, 5098695, 7138173, 10197390, 11896955, 14276346, 23793910, 35690865, 71381730]

約数ペア:

[(1, 71381730), (2, 35690865), (3, 23793910), (5, 14276346), (6, 11896955), (7, 10197390), (10, 7138173), (14, 5098695), (15, 4758782), (21, 3399130), (30, 2379391), (35, 2039478), (42, 1699565), (49, 1456770), (70, 1019739), (98, 728385), (105, 679826), (147, 485590), (210, 339913), (245, 291354), (294, 242795), (343, 208110), (490, 145677), (686, 104055), (735, 97118), (991, 72030), (1029, 69370), (1470, 48559), (1715, 41622), (1982, 36015), (2058, 34685), (2401, 29730), (2973, 24010), (3430, 20811), (4802, 14865), (4955, 14406), (5145, 13874), (5946, 12005), (6937, 10290), (7203, 9910)]