210520720

素因数分解:

$2^4\times 5^1\times {\mathrm{2631509}}^1$

素因数の和:2631522

約数の個数: 20

約数和(自身を含む): 489460860

約数和(自身を除く): 278940140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2631509, 5263018, 10526036, 13157545, 21052072, 26315090, 42104144, 52630180, 105260360, 210520720]

約数ペア:

[(1, 210520720), (2, 105260360), (4, 52630180), (5, 42104144), (8, 26315090), (10, 21052072), (16, 13157545), (20, 10526036), (40, 5263018), (80, 2631509)]