81891768

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{61}}^2\times {\mathrm{131}}^1$

素因数の和:269

約数の個数: 96

約数和(自身を含む): 239690880

約数和(自身を除く): 157799112

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 61, 84, 122, 131, 168, 183, 244, 262, 366, 393, 427, 488, 524, 732, 786, 854, 917, 1048, 1281, 1464, 1572, 1708, 1834, 2562, 2751, 3144, 3416, 3668, 3721, 5124, 5502, 7336, 7442, 7991, 10248, 11004, 11163, 14884, 15982, 22008, 22326, 23973, 26047, 29768, 31964, 44652, 47946, 52094, 55937, 63928, 78141, 89304, 95892, 104188, 111874, 156282, 167811, 191784, 208376, 223748, 312564, 335622, 447496, 487451, 625128, 671244, 974902, 1342488, 1462353, 1949804, 2924706, 3412157, 3899608, 5849412, 6824314, 10236471, 11698824, 13648628, 20472942, 27297256, 40945884, 81891768]

約数ペア:

[(1, 81891768), (2, 40945884), (3, 27297256), (4, 20472942), (6, 13648628), (7, 11698824), (8, 10236471), (12, 6824314), (14, 5849412), (21, 3899608), (24, 3412157), (28, 2924706), (42, 1949804), (56, 1462353), (61, 1342488), (84, 974902), (122, 671244), (131, 625128), (168, 487451), (183, 447496), (244, 335622), (262, 312564), (366, 223748), (393, 208376), (427, 191784), (488, 167811), (524, 156282), (732, 111874), (786, 104188), (854, 95892), (917, 89304), (1048, 78141), (1281, 63928), (1464, 55937), (1572, 52094), (1708, 47946), (1834, 44652), (2562, 31964), (2751, 29768), (3144, 26047), (3416, 23973), (3668, 22326), (3721, 22008), (5124, 15982), (5502, 14884), (7336, 11163), (7442, 11004), (7991, 10248)]