638563408

素因数分解:

$2^4\times 7^1\times {\mathrm{5701459}}^1$

素因数の和:5701474

約数の個数: 20

約数和(自身を含む): 1413962080

約数和(自身を除く): 775398672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 5701459, 11402918, 22805836, 39910213, 45611672, 79820426, 91223344, 159640852, 319281704, 638563408]

約数ペア:

[(1, 638563408), (2, 319281704), (4, 159640852), (7, 91223344), (8, 79820426), (14, 45611672), (16, 39910213), (28, 22805836), (56, 11402918), (112, 5701459)]