261534410

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{40801}}^1$

素因数の和:41449

約数の個数: 16

約数和(自身を含む): 471507912

約数和(自身を除く): 209973502

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 6410, 40801, 81602, 204005, 408010, 26153441, 52306882, 130767205, 261534410]

約数ペア:

[(1, 261534410), (2, 130767205), (5, 52306882), (10, 26153441), (641, 408010), (1282, 204005), (3205, 81602), (6410, 40801)]