40872013

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 52774400

約数和(自身を除く): 11902387

約数列:

[1, 7, 13, 37, 61, 91, 199, 259, 427, 481, 793, 1393, 2257, 2587, 3367, 5551, 7363, 12139, 15799, 18109, 29341, 51541, 84973, 95719, 157807, 205387, 449143, 670033, 1104649, 3144001, 5838859, 40872013]

約数ペア:

[(1, 40872013), (7, 5838859), (13, 3144001), (37, 1104649), (61, 670033), (91, 449143), (199, 205387), (259, 157807), (427, 95719), (481, 84973), (793, 51541), (1393, 29341), (2257, 18109), (2587, 15799), (3367, 12139), (5551, 7363)]