278328368

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{106721}}^1$

素因数の和:106892

約数の個数: 20

約数和(自身を含む): 542574648

約数和(自身を除く): 264246280

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 106721, 213442, 426884, 853768, 1707536, 17395523, 34791046, 69582092, 139164184, 278328368]

約数ペア:

[(1, 278328368), (2, 139164184), (4, 69582092), (8, 34791046), (16, 17395523), (163, 1707536), (326, 853768), (652, 426884), (1304, 213442), (2608, 106721)]