420427900

素因数分解:

$2^2\times 5^2\times {\mathrm{4204279}}^1$

素因数の和:4204293

約数の個数: 18

約数和(自身を含む): 912328760

約数和(自身を除く): 491900860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 4204279, 8408558, 16817116, 21021395, 42042790, 84085580, 105106975, 210213950, 420427900]

約数ペア:

[(1, 420427900), (2, 210213950), (4, 105106975), (5, 84085580), (10, 42042790), (20, 21021395), (25, 16817116), (50, 8408558), (100, 4204279)]