28777420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205553}}^1$

素因数の和:205569

約数の個数: 24

約数和(自身を含む): 69066144

約数和(自身を除く): 40288724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205553, 411106, 822212, 1027765, 1438871, 2055530, 2877742, 4111060, 5755484, 7194355, 14388710, 28777420]

約数ペア:

[(1, 28777420), (2, 14388710), (4, 7194355), (5, 5755484), (7, 4111060), (10, 2877742), (14, 2055530), (20, 1438871), (28, 1027765), (35, 822212), (70, 411106), (140, 205553)]