81012708

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2129}}^1$

素因数の和:2297

約数の個数: 72

約数和(自身を含む): 235697280

約数和(自身を除く): 154684572

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 151, 252, 302, 453, 604, 906, 1057, 1359, 1812, 2114, 2129, 2718, 3171, 4228, 4258, 5436, 6342, 6387, 8516, 9513, 12684, 12774, 14903, 19026, 19161, 25548, 29806, 38052, 38322, 44709, 59612, 76644, 89418, 134127, 178836, 268254, 321479, 536508, 642958, 964437, 1285916, 1928874, 2250353, 2893311, 3857748, 4500706, 5786622, 6751059, 9001412, 11573244, 13502118, 20253177, 27004236, 40506354, 81012708]

約数ペア:

[(1, 81012708), (2, 40506354), (3, 27004236), (4, 20253177), (6, 13502118), (7, 11573244), (9, 9001412), (12, 6751059), (14, 5786622), (18, 4500706), (21, 3857748), (28, 2893311), (36, 2250353), (42, 1928874), (63, 1285916), (84, 964437), (126, 642958), (151, 536508), (252, 321479), (302, 268254), (453, 178836), (604, 134127), (906, 89418), (1057, 76644), (1359, 59612), (1812, 44709), (2114, 38322), (2129, 38052), (2718, 29806), (3171, 25548), (4228, 19161), (4258, 19026), (5436, 14903), (6342, 12774), (6387, 12684), (8516, 9513)]