675440

素因数分解:

$2^4\times 5^1\times {\mathrm{8443}}^1$

素因数の和:8456

約数の個数: 20

約数和(自身を含む): 1570584

約数和(自身を除く): 895144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8443, 16886, 33772, 42215, 67544, 84430, 135088, 168860, 337720, 675440]

約数ペア:

[(1, 675440), (2, 337720), (4, 168860), (5, 135088), (8, 84430), (10, 67544), (16, 42215), (20, 33772), (40, 16886), (80, 8443)]