20211988900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{2846759}}^1$

素因数の和:2846844

約数の個数: 36

約数和(自身を含む): 44477778240

約数和(自身を除く): 24265789340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 7100, 2846759, 5693518, 11387036, 14233795, 28467590, 56935180, 71168975, 142337950, 202119889, 284675900, 404239778, 808479556, 1010599445, 2021198890, 4042397780, 5052997225, 10105994450, 20211988900]

約数ペア:

[(1, 20211988900), (2, 10105994450), (4, 5052997225), (5, 4042397780), (10, 2021198890), (20, 1010599445), (25, 808479556), (50, 404239778), (71, 284675900), (100, 202119889), (142, 142337950), (284, 71168975), (355, 56935180), (710, 28467590), (1420, 14233795), (1775, 11387036), (3550, 5693518), (7100, 2846759)]