81231486

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 190267392

約数和(自身を除く): 109035906

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 97, 127, 157, 194, 254, 291, 314, 381, 471, 582, 679, 762, 889, 942, 1099, 1358, 1778, 2037, 2198, 2667, 3297, 4074, 5334, 6594, 12319, 15229, 19939, 24638, 30458, 36957, 39878, 45687, 59817, 73914, 86233, 91374, 106603, 119634, 139573, 172466, 213206, 258699, 279146, 319809, 418719, 517398, 639618, 837438, 1934083, 3868166, 5802249, 11604498, 13538581, 27077162, 40615743, 81231486]

約数ペア:

[(1, 81231486), (2, 40615743), (3, 27077162), (6, 13538581), (7, 11604498), (14, 5802249), (21, 3868166), (42, 1934083), (97, 837438), (127, 639618), (157, 517398), (194, 418719), (254, 319809), (291, 279146), (314, 258699), (381, 213206), (471, 172466), (582, 139573), (679, 119634), (762, 106603), (889, 91374), (942, 86233), (1099, 73914), (1358, 59817), (1778, 45687), (2037, 39878), (2198, 36957), (2667, 30458), (3297, 24638), (4074, 19939), (5334, 15229), (6594, 12319)]