13920775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{227}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 18998784

約数和(自身を除く): 5078009

約数列:

[1, 5, 11, 25, 55, 223, 227, 275, 1115, 1135, 2453, 2497, 5575, 5675, 12265, 12485, 50621, 61325, 62425, 253105, 556831, 1265525, 2784155, 13920775]

約数ペア:

[(1, 13920775), (5, 2784155), (11, 1265525), (25, 556831), (55, 253105), (223, 62425), (227, 61325), (275, 50621), (1115, 12485), (1135, 12265), (2453, 5675), (2497, 5575)]