65538020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{76207}}^1$

素因数の和:76259

約数の個数: 24

約数和(自身を含む): 140832384

約数和(自身を除く): 75294364

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 76207, 152414, 304828, 381035, 762070, 1524140, 3276901, 6553802, 13107604, 16384505, 32769010, 65538020]

約数ペア:

[(1, 65538020), (2, 32769010), (4, 16384505), (5, 13107604), (10, 6553802), (20, 3276901), (43, 1524140), (86, 762070), (172, 381035), (215, 304828), (430, 152414), (860, 76207)]