213955420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1528253}}^1$

素因数の和:1528269

約数の個数: 24

約数和(自身を含む): 513493344

約数和(自身を除く): 299537924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1528253, 3056506, 6113012, 7641265, 10697771, 15282530, 21395542, 30565060, 42791084, 53488855, 106977710, 213955420]

約数ペア:

[(1, 213955420), (2, 106977710), (4, 53488855), (5, 42791084), (7, 30565060), (10, 21395542), (14, 15282530), (20, 10697771), (28, 7641265), (35, 6113012), (70, 3056506), (140, 1528253)]