639903632

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{353929}}^1$

素因数の和:354050

約数の個数: 20

約数和(自身を含む): 1250788620

約数和(自身を除く): 610884988

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 353929, 707858, 1415716, 2831432, 5662864, 39993977, 79987954, 159975908, 319951816, 639903632]

約数ペア:

[(1, 639903632), (2, 319951816), (4, 159975908), (8, 79987954), (16, 39993977), (113, 5662864), (226, 2831432), (452, 1415716), (904, 707858), (1808, 353929)]