81567612

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{751}}^1$

素因数の和:1199

約数の個数: 72

約数和(自身を含む): 236500992

約数和(自身を除く): 154933380

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 431, 751, 862, 1293, 1502, 1724, 2253, 2586, 3004, 3017, 3879, 4506, 5172, 5257, 6034, 6759, 7758, 9012, 9051, 10514, 12068, 13518, 15516, 15771, 18102, 21028, 27036, 27153, 31542, 36204, 47313, 54306, 63084, 94626, 108612, 189252, 323681, 647362, 971043, 1294724, 1942086, 2265767, 2913129, 3884172, 4531534, 5826258, 6797301, 9063068, 11652516, 13594602, 20391903, 27189204, 40783806, 81567612]

約数ペア:

[(1, 81567612), (2, 40783806), (3, 27189204), (4, 20391903), (6, 13594602), (7, 11652516), (9, 9063068), (12, 6797301), (14, 5826258), (18, 4531534), (21, 3884172), (28, 2913129), (36, 2265767), (42, 1942086), (63, 1294724), (84, 971043), (126, 647362), (252, 323681), (431, 189252), (751, 108612), (862, 94626), (1293, 63084), (1502, 54306), (1724, 47313), (2253, 36204), (2586, 31542), (3004, 27153), (3017, 27036), (3879, 21028), (4506, 18102), (5172, 15771), (5257, 15516), (6034, 13518), (6759, 12068), (7758, 10514), (9012, 9051)]