20455305

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5521}}^1$

素因数の和:5561

約数の個数: 32

約数和(自身を含む): 37107840

約数和(自身を除く): 16652535

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 5521, 16563, 27605, 71773, 82815, 104899, 215319, 314697, 358865, 524495, 1076595, 1363687, 1573485, 4091061, 6818435, 20455305]

約数ペア:

[(1, 20455305), (3, 6818435), (5, 4091061), (13, 1573485), (15, 1363687), (19, 1076595), (39, 524495), (57, 358865), (65, 314697), (95, 215319), (195, 104899), (247, 82815), (285, 71773), (741, 27605), (1235, 16563), (3705, 5521)]