219620980

素因数分解:

$2^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{12107}}^1$

素因数の和:13023

約数の個数: 24

約数和(自身を含む): 461750688

約数和(自身を除く): 242129708

約数列:

[1, 2, 4, 5, 10, 20, 907, 1814, 3628, 4535, 9070, 12107, 18140, 24214, 48428, 60535, 121070, 242140, 10981049, 21962098, 43924196, 54905245, 109810490, 219620980]

約数ペア:

[(1, 219620980), (2, 109810490), (4, 54905245), (5, 43924196), (10, 21962098), (20, 10981049), (907, 242140), (1814, 121070), (3628, 60535), (4535, 48428), (9070, 24214), (12107, 18140)]