81973086

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 182891520

約数和(自身を除く): 100918434

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 79, 106, 158, 159, 237, 251, 318, 474, 502, 689, 753, 1027, 1378, 1506, 2054, 2067, 3081, 3263, 4134, 4187, 6162, 6526, 8374, 9789, 12561, 13303, 19578, 19829, 25122, 26606, 39658, 39909, 54431, 59487, 79818, 108862, 118974, 163293, 172939, 257777, 326586, 345878, 515554, 518817, 773331, 1037634, 1050937, 1546662, 2101874, 3152811, 6305622, 13662181, 27324362, 40986543, 81973086]

約数ペア:

[(1, 81973086), (2, 40986543), (3, 27324362), (6, 13662181), (13, 6305622), (26, 3152811), (39, 2101874), (53, 1546662), (78, 1050937), (79, 1037634), (106, 773331), (158, 518817), (159, 515554), (237, 345878), (251, 326586), (318, 257777), (474, 172939), (502, 163293), (689, 118974), (753, 108862), (1027, 79818), (1378, 59487), (1506, 54431), (2054, 39909), (2067, 39658), (3081, 26606), (3263, 25122), (4134, 19829), (4187, 19578), (6162, 13303), (6526, 12561), (8374, 9789)]