82790720

素因数分解:

$2^6\times 5^1\times {\mathrm{258721}}^1$

素因数の和:258738

約数の個数: 28

約数和(自身を含む): 197146164

約数和(自身を除く): 114355444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 258721, 517442, 1034884, 1293605, 2069768, 2587210, 4139536, 5174420, 8279072, 10348840, 16558144, 20697680, 41395360, 82790720]

約数ペア:

[(1, 82790720), (2, 41395360), (4, 20697680), (5, 16558144), (8, 10348840), (10, 8279072), (16, 5174420), (20, 4139536), (32, 2587210), (40, 2069768), (64, 1293605), (80, 1034884), (160, 517442), (320, 258721)]