261256144

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{229979}}^1$

素因数の和:230058

約数の個数: 20

約数和(自身を含む): 513315360

約数和(自身を除く): 252059216

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 229979, 459958, 919916, 1839832, 3679664, 16328509, 32657018, 65314036, 130628072, 261256144]

約数ペア:

[(1, 261256144), (2, 130628072), (4, 65314036), (8, 32657018), (16, 16328509), (71, 3679664), (142, 1839832), (284, 919916), (568, 459958), (1136, 229979)]