221669780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{270329}}^1$

素因数の和:270379

約数の個数: 24

約数和(自身を含む): 476862120

約数和(自身を除く): 255192340

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 270329, 540658, 1081316, 1351645, 2703290, 5406580, 11083489, 22166978, 44333956, 55417445, 110834890, 221669780]

約数ペア:

[(1, 221669780), (2, 110834890), (4, 55417445), (5, 44333956), (10, 22166978), (20, 11083489), (41, 5406580), (82, 2703290), (164, 1351645), (205, 1081316), (410, 540658), (820, 270329)]