128658881

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 149022720

約数和(自身を除く): 20363839

約数列:

[1, 13, 43, 47, 59, 83, 559, 611, 767, 1079, 2021, 2537, 2773, 3569, 3901, 4897, 26273, 32981, 36049, 46397, 50713, 63661, 119239, 167743, 210571, 230159, 1550107, 2180659, 2737423, 2992067, 9896837, 128658881]

約数ペア:

[(1, 128658881), (13, 9896837), (43, 2992067), (47, 2737423), (59, 2180659), (83, 1550107), (559, 230159), (611, 210571), (767, 167743), (1079, 119239), (2021, 63661), (2537, 50713), (2773, 46397), (3569, 36049), (3901, 32981), (4897, 26273)]