261750128

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{197101}}^1$

素因数の和:197192

約数の個数: 20

約数和(自身を含む): 513253608

約数和(自身を除く): 251503480

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 197101, 394202, 788404, 1576808, 3153616, 16359383, 32718766, 65437532, 130875064, 261750128]

約数ペア:

[(1, 261750128), (2, 130875064), (4, 65437532), (8, 32718766), (16, 16359383), (83, 3153616), (166, 1576808), (332, 788404), (664, 394202), (1328, 197101)]