256366672

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{24919}}^1$

素因数の和:25570

約数の個数: 20

約数和(自身を含む): 497502880

約数和(自身を除く): 241136208

約数列:

[1, 2, 4, 8, 16, 643, 1286, 2572, 5144, 10288, 24919, 49838, 99676, 199352, 398704, 16022917, 32045834, 64091668, 128183336, 256366672]

約数ペア:

[(1, 256366672), (2, 128183336), (4, 64091668), (8, 32045834), (16, 16022917), (643, 398704), (1286, 199352), (2572, 99676), (5144, 49838), (10288, 24919)]