256977310

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1\times {\mathrm{839}}^1$

素因数の和:1236

約数の個数: 32

約数和(自身を含む): 469022400

約数和(自身を除く): 212045090

約数列:

[1, 2, 5, 10, 109, 218, 281, 545, 562, 839, 1090, 1405, 1678, 2810, 4195, 8390, 30629, 61258, 91451, 153145, 182902, 235759, 306290, 457255, 471518, 914510, 1178795, 2357590, 25697731, 51395462, 128488655, 256977310]

約数ペア:

[(1, 256977310), (2, 128488655), (5, 51395462), (10, 25697731), (109, 2357590), (218, 1178795), (281, 914510), (545, 471518), (562, 457255), (839, 306290), (1090, 235759), (1405, 182902), (1678, 153145), (2810, 91451), (4195, 61258), (8390, 30629)]