51212240

素因数分解:

$2^4\times 5^1\times {\mathrm{640153}}^1$

素因数の和:640166

約数の個数: 20

約数和(自身を含む): 119068644

約数和(自身を除く): 67856404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 640153, 1280306, 2560612, 3200765, 5121224, 6401530, 10242448, 12803060, 25606120, 51212240]

約数ペア:

[(1, 51212240), (2, 25606120), (4, 12803060), (5, 10242448), (8, 6401530), (10, 5121224), (16, 3200765), (20, 2560612), (40, 1280306), (80, 640153)]