81616160

素因数分解:

$2^5\times 5^1\times {\mathrm{510101}}^1$

素因数の和:510116

約数の個数: 24

約数和(自身を含む): 192818556

約数和(自身を除く): 111202396

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 510101, 1020202, 2040404, 2550505, 4080808, 5101010, 8161616, 10202020, 16323232, 20404040, 40808080, 81616160]

約数ペア:

[(1, 81616160), (2, 40808080), (4, 20404040), (5, 16323232), (8, 10202020), (10, 8161616), (16, 5101010), (20, 4080808), (32, 2550505), (40, 2040404), (80, 1020202), (160, 510101)]