638837416

素因数分解:

$2^3\times 7^1\times {\mathrm{11407811}}^1$

素因数の和:11407824

約数の個数: 16

約数和(自身を含む): 1368937440

約数和(自身を除く): 730100024

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 11407811, 22815622, 45631244, 79854677, 91262488, 159709354, 319418708, 638837416]

約数ペア:

[(1, 638837416), (2, 319418708), (4, 159709354), (7, 91262488), (8, 79854677), (14, 45631244), (28, 22815622), (56, 11407811)]