20780226

素因数分解:

$2^1\times 3^4\times {\mathrm{128273}}^1$

素因数の和:128287

約数の個数: 20

約数和(自身を含む): 46563462

約数和(自身を除く): 25783236

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 128273, 256546, 384819, 769638, 1154457, 2308914, 3463371, 6926742, 10390113, 20780226]

約数ペア:

[(1, 20780226), (2, 10390113), (3, 6926742), (6, 3463371), (9, 2308914), (18, 1154457), (27, 769638), (54, 384819), (81, 256546), (162, 128273)]