1621000400

素因数分解:

$2^4\times 5^2\times {\mathrm{4052501}}^1$

素因数の和:4052519

約数の個数: 30

約数和(自身を含む): 3894454422

約数和(自身を除く): 2273454022

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4052501, 8105002, 16210004, 20262505, 32420008, 40525010, 64840016, 81050020, 101312525, 162100040, 202625050, 324200080, 405250100, 810500200, 1621000400]

約数ペア:

[(1, 1621000400), (2, 810500200), (4, 405250100), (5, 324200080), (8, 202625050), (10, 162100040), (16, 101312525), (20, 81050020), (25, 64840016), (40, 40525010), (50, 32420008), (80, 20262505), (100, 16210004), (200, 8105002), (400, 4052501)]