664918256

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1340561}}^1$

素因数の和:1340600

約数の個数: 20

約数和(自身を含む): 1329837504

約数和(自身を除く): 664919248

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1340561, 2681122, 5362244, 10724488, 21448976, 41557391, 83114782, 166229564, 332459128, 664918256]

約数ペア:

[(1, 664918256), (2, 332459128), (4, 166229564), (8, 83114782), (16, 41557391), (31, 21448976), (62, 10724488), (124, 5362244), (248, 2681122), (496, 1340561)]