128816950

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{25013}}^1$

素因数の和:25128

約数の個数: 24

約数和(自身を含む): 241935408

約数和(自身を除く): 113118458

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 515, 1030, 2575, 5150, 25013, 50026, 125065, 250130, 625325, 1250650, 2576339, 5152678, 12881695, 25763390, 64408475, 128816950]

約数ペア:

[(1, 128816950), (2, 64408475), (5, 25763390), (10, 12881695), (25, 5152678), (50, 2576339), (103, 1250650), (206, 625325), (515, 250130), (1030, 125065), (2575, 50026), (5150, 25013)]