772028020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{897707}}^1$

素因数の和:897759

約数の個数: 24

約数和(自身を含む): 1658964384

約数和(自身を除く): 886936364

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 897707, 1795414, 3590828, 4488535, 8977070, 17954140, 38601401, 77202802, 154405604, 193007005, 386014010, 772028020]

約数ペア:

[(1, 772028020), (2, 386014010), (4, 193007005), (5, 154405604), (10, 77202802), (20, 38601401), (43, 17954140), (86, 8977070), (172, 4488535), (215, 3590828), (430, 1795414), (860, 897707)]