81135684

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{811}}^1$

素因数の和:1225

約数の個数: 72

約数和(自身を含む): 235272128

約数和(自身を除く): 154136444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 397, 794, 811, 1191, 1588, 1622, 2382, 2433, 2779, 3244, 3573, 4764, 4866, 5558, 5677, 7146, 7299, 8337, 9732, 11116, 11354, 14292, 14598, 16674, 17031, 22708, 25011, 29196, 33348, 34062, 50022, 51093, 68124, 100044, 102186, 204372, 321967, 643934, 965901, 1287868, 1931802, 2253769, 2897703, 3863604, 4507538, 5795406, 6761307, 9015076, 11590812, 13522614, 20283921, 27045228, 40567842, 81135684]

約数ペア:

[(1, 81135684), (2, 40567842), (3, 27045228), (4, 20283921), (6, 13522614), (7, 11590812), (9, 9015076), (12, 6761307), (14, 5795406), (18, 4507538), (21, 3863604), (28, 2897703), (36, 2253769), (42, 1931802), (63, 1287868), (84, 965901), (126, 643934), (252, 321967), (397, 204372), (794, 102186), (811, 100044), (1191, 68124), (1588, 51093), (1622, 50022), (2382, 34062), (2433, 33348), (2779, 29196), (3244, 25011), (3573, 22708), (4764, 17031), (4866, 16674), (5558, 14598), (5677, 14292), (7146, 11354), (7299, 11116), (8337, 9732)]