4012100020

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{456959}}^1$

素因数の和:457407

約数の個数: 24

約数和(自身を含む): 8444620800

約数和(自身を除く): 4432520780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 456959, 913918, 1827836, 2284795, 4569590, 9139180, 200605001, 401210002, 802420004, 1003025005, 2006050010, 4012100020]

約数ペア:

[(1, 4012100020), (2, 2006050010), (4, 1003025005), (5, 802420004), (10, 401210002), (20, 200605001), (439, 9139180), (878, 4569590), (1756, 2284795), (2195, 1827836), (4390, 913918), (8780, 456959)]