20286855

素因数分解:

$3^5\times 5^1\times {\mathrm{59}}^1\times {\mathrm{283}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 37215360

約数和(自身を除く): 16928505

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 81, 135, 177, 243, 283, 295, 405, 531, 849, 885, 1215, 1415, 1593, 2547, 2655, 4245, 4779, 7641, 7965, 12735, 14337, 16697, 22923, 23895, 38205, 50091, 68769, 71685, 83485, 114615, 150273, 250455, 343845, 450819, 751365, 1352457, 2254095, 4057371, 6762285, 20286855]

約数ペア:

[(1, 20286855), (3, 6762285), (5, 4057371), (9, 2254095), (15, 1352457), (27, 751365), (45, 450819), (59, 343845), (81, 250455), (135, 150273), (177, 114615), (243, 83485), (283, 71685), (295, 68769), (405, 50091), (531, 38205), (849, 23895), (885, 22923), (1215, 16697), (1415, 14337), (1593, 12735), (2547, 7965), (2655, 7641), (4245, 4779)]