138884464

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{280009}}^1$

素因数の和:280048

約数の個数: 20

約数和(自身を含む): 277769920

約数和(自身を除く): 138885456

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 280009, 560018, 1120036, 2240072, 4480144, 8680279, 17360558, 34721116, 69442232, 138884464]

約数ペア:

[(1, 138884464), (2, 69442232), (4, 34721116), (8, 17360558), (16, 8680279), (31, 4480144), (62, 2240072), (124, 1120036), (248, 560018), (496, 280009)]