639777638

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{34729}}^1$

素因数の和:34943

約数の個数: 16

約数和(自身を含む): 981886560

約数和(自身を除く): 342108922

約数列:

[1, 2, 61, 122, 151, 302, 9211, 18422, 34729, 69458, 2118469, 4236938, 5244079, 10488158, 319888819, 639777638]

約数ペア:

[(1, 639777638), (2, 319888819), (61, 10488158), (122, 5244079), (151, 4236938), (302, 2118469), (9211, 69458), (18422, 34729)]