81356562

素因数分解:

$2^1\times 3^4\times 7^2\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:342

約数の個数: 120

約数和(自身を含む): 218579724

約数和(自身を除く): 137223162

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 49, 54, 63, 74, 81, 98, 111, 126, 147, 162, 189, 222, 259, 277, 294, 333, 378, 441, 518, 554, 567, 666, 777, 831, 882, 999, 1134, 1323, 1554, 1662, 1813, 1939, 1998, 2331, 2493, 2646, 2997, 3626, 3878, 3969, 4662, 4986, 5439, 5817, 5994, 6993, 7479, 7938, 10249, 10878, 11634, 13573, 13986, 14958, 16317, 17451, 20498, 20979, 22437, 27146, 30747, 32634, 34902, 40719, 41958, 44874, 48951, 52353, 61494, 71743, 81438, 92241, 97902, 104706, 122157, 143486, 146853, 157059, 184482, 215229, 244314, 276723, 293706, 314118, 366471, 430458, 502201, 553446, 645687, 732942, 830169, 1004402, 1099413, 1291374, 1506603, 1660338, 1937061, 2198826, 3013206, 3874122, 4519809, 5811183, 9039618, 11622366, 13559427, 27118854, 40678281, 81356562]

約数ペア:

[(1, 81356562), (2, 40678281), (3, 27118854), (6, 13559427), (7, 11622366), (9, 9039618), (14, 5811183), (18, 4519809), (21, 3874122), (27, 3013206), (37, 2198826), (42, 1937061), (49, 1660338), (54, 1506603), (63, 1291374), (74, 1099413), (81, 1004402), (98, 830169), (111, 732942), (126, 645687), (147, 553446), (162, 502201), (189, 430458), (222, 366471), (259, 314118), (277, 293706), (294, 276723), (333, 244314), (378, 215229), (441, 184482), (518, 157059), (554, 146853), (567, 143486), (666, 122157), (777, 104706), (831, 97902), (882, 92241), (999, 81438), (1134, 71743), (1323, 61494), (1554, 52353), (1662, 48951), (1813, 44874), (1939, 41958), (1998, 40719), (2331, 34902), (2493, 32634), (2646, 30747), (2997, 27146), (3626, 22437), (3878, 20979), (3969, 20498), (4662, 17451), (4986, 16317), (5439, 14958), (5817, 13986), (5994, 13573), (6993, 11634), (7479, 10878), (7938, 10249)]