81317196

素因数分解:

$2^2\times 3^4\times {\mathrm{250979}}^1$

素因数の和:250995

約数の個数: 30

約数和(自身を含む): 212580060

約数和(自身を除く): 131262864

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 250979, 501958, 752937, 1003916, 1505874, 2258811, 3011748, 4517622, 6776433, 9035244, 13552866, 20329299, 27105732, 40658598, 81317196]

約数ペア:

[(1, 81317196), (2, 40658598), (3, 27105732), (4, 20329299), (6, 13552866), (9, 9035244), (12, 6776433), (18, 4517622), (27, 3011748), (36, 2258811), (54, 1505874), (81, 1003916), (108, 752937), (162, 501958), (324, 250979)]