638096

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{2099}}^1$

素因数の和:2126

約数の個数: 20

約数和(自身を含む): 1302000

約数和(自身を除く): 663904

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 2099, 4198, 8396, 16792, 33584, 39881, 79762, 159524, 319048, 638096]

約数ペア:

[(1, 638096), (2, 319048), (4, 159524), (8, 79762), (16, 39881), (19, 33584), (38, 16792), (76, 8396), (152, 4198), (304, 2099)]