70032500

素因数分解:

$2^2\times 5^4\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:390

約数の個数: 60

約数和(自身を含む): 155153460

約数和(自身を除く): 85120960

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 125, 218, 250, 257, 436, 500, 514, 545, 625, 1028, 1090, 1250, 1285, 2180, 2500, 2570, 2725, 5140, 5450, 6425, 10900, 12850, 13625, 25700, 27250, 28013, 32125, 54500, 56026, 64250, 68125, 112052, 128500, 136250, 140065, 160625, 272500, 280130, 321250, 560260, 642500, 700325, 1400650, 2801300, 3501625, 7003250, 14006500, 17508125, 35016250, 70032500]

約数ペア:

[(1, 70032500), (2, 35016250), (4, 17508125), (5, 14006500), (10, 7003250), (20, 3501625), (25, 2801300), (50, 1400650), (100, 700325), (109, 642500), (125, 560260), (218, 321250), (250, 280130), (257, 272500), (436, 160625), (500, 140065), (514, 136250), (545, 128500), (625, 112052), (1028, 68125), (1090, 64250), (1250, 56026), (1285, 54500), (2180, 32125), (2500, 28013), (2570, 27250), (2725, 25700), (5140, 13625), (5450, 12850), (6425, 10900)]