20512085

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2503}}^1$

素因数の和:2668

約数の個数: 16

約数和(自身を含む): 27043200

約数和(自身を除く): 6531115

約数列:

[1, 5, 11, 55, 149, 745, 1639, 2503, 8195, 12515, 27533, 137665, 372947, 1864735, 4102417, 20512085]

約数ペア:

[(1, 20512085), (5, 4102417), (11, 1864735), (55, 372947), (149, 137665), (745, 27533), (1639, 12515), (2503, 8195)]