127639145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 167132160

約数和(自身を除く): 39493015

約数列:

[1, 5, 17, 61, 85, 103, 239, 305, 515, 1037, 1195, 1751, 4063, 5185, 6283, 8755, 14579, 20315, 24617, 31415, 72895, 106811, 123085, 247843, 418489, 534055, 1239215, 1501637, 2092445, 7508185, 25527829, 127639145]

約数ペア:

[(1, 127639145), (5, 25527829), (17, 7508185), (61, 2092445), (85, 1501637), (103, 1239215), (239, 534055), (305, 418489), (515, 247843), (1037, 123085), (1195, 106811), (1751, 72895), (4063, 31415), (5185, 24617), (6283, 20315), (8755, 14579)]