258515536

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{116239}}^1$

素因数の和:116386

約数の個数: 20

約数和(自身を含む): 504481600

約数和(自身を除く): 245966064

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 116239, 232478, 464956, 929912, 1859824, 16157221, 32314442, 64628884, 129257768, 258515536]

約数ペア:

[(1, 258515536), (2, 129257768), (4, 64628884), (8, 32314442), (16, 16157221), (139, 1859824), (278, 929912), (556, 464956), (1112, 232478), (2224, 116239)]