261017072

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{196549}}^1$

素因数の和:196640

約数の個数: 20

約数和(自身を含む): 511816200

約数和(自身を除く): 250799128

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 196549, 393098, 786196, 1572392, 3144784, 16313567, 32627134, 65254268, 130508536, 261017072]

約数ペア:

[(1, 261017072), (2, 130508536), (4, 65254268), (8, 32627134), (16, 16313567), (83, 3144784), (166, 1572392), (332, 786196), (664, 393098), (1328, 196549)]