199964900

素因数分解:

$2^2\times 5^2\times {\mathrm{1249}}^1\times {\mathrm{1601}}^1$

素因数の和:2864

約数の個数: 36

約数和(自身を含む): 434542500

約数和(自身を除く): 234577600

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1249, 1601, 2498, 3202, 4996, 6245, 6404, 8005, 12490, 16010, 24980, 31225, 32020, 40025, 62450, 80050, 124900, 160100, 1999649, 3999298, 7998596, 9998245, 19996490, 39992980, 49991225, 99982450, 199964900]

約数ペア:

[(1, 199964900), (2, 99982450), (4, 49991225), (5, 39992980), (10, 19996490), (20, 9998245), (25, 7998596), (50, 3999298), (100, 1999649), (1249, 160100), (1601, 124900), (2498, 80050), (3202, 62450), (4996, 40025), (6245, 32020), (6404, 31225), (8005, 24980), (12490, 16010)]