149440360

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{14537}}^1$

素因数の和:14805

約数の個数: 32

約数和(自身を含む): 337572360

約数和(自身を除く): 188132000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 14537, 29074, 58148, 72685, 116296, 145370, 290740, 581480, 3736009, 7472018, 14944036, 18680045, 29888072, 37360090, 74720180, 149440360]

約数ペア:

[(1, 149440360), (2, 74720180), (4, 37360090), (5, 29888072), (8, 18680045), (10, 14944036), (20, 7472018), (40, 3736009), (257, 581480), (514, 290740), (1028, 145370), (1285, 116296), (2056, 72685), (2570, 58148), (5140, 29074), (10280, 14537)]