21160400

素因数分解:

$2^4\times 5^2\times {\mathrm{52901}}^1$

素因数の和:52919

約数の個数: 30

約数和(自身を含む): 50838822

約数和(自身を除く): 29678422

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52901, 105802, 211604, 264505, 423208, 529010, 846416, 1058020, 1322525, 2116040, 2645050, 4232080, 5290100, 10580200, 21160400]

約数ペア:

[(1, 21160400), (2, 10580200), (4, 5290100), (5, 4232080), (8, 2645050), (10, 2116040), (16, 1322525), (20, 1058020), (25, 846416), (40, 529010), (50, 423208), (80, 264505), (100, 211604), (200, 105802), (400, 52901)]