128599180

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{20543}}^1$

素因数の和:20865

約数の個数: 24

約数和(自身を含む): 270934272

約数和(自身を除く): 142335092

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 6260, 20543, 41086, 82172, 102715, 205430, 410860, 6429959, 12859918, 25719836, 32149795, 64299590, 128599180]

約数ペア:

[(1, 128599180), (2, 64299590), (4, 32149795), (5, 25719836), (10, 12859918), (20, 6429959), (313, 410860), (626, 205430), (1252, 102715), (1565, 82172), (3130, 41086), (6260, 20543)]