20703124

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 40981248

約数和(自身を除く): 20278124

約数列:

[1, 2, 4, 13, 26, 43, 47, 52, 86, 94, 172, 188, 197, 394, 559, 611, 788, 1118, 1222, 2021, 2236, 2444, 2561, 4042, 5122, 8084, 8471, 9259, 10244, 16942, 18518, 26273, 33884, 37036, 52546, 105092, 110123, 120367, 220246, 240734, 398137, 440492, 481468, 796274, 1592548, 5175781, 10351562, 20703124]

約数ペア:

[(1, 20703124), (2, 10351562), (4, 5175781), (13, 1592548), (26, 796274), (43, 481468), (47, 440492), (52, 398137), (86, 240734), (94, 220246), (172, 120367), (188, 110123), (197, 105092), (394, 52546), (559, 37036), (611, 33884), (788, 26273), (1118, 18518), (1222, 16942), (2021, 10244), (2236, 9259), (2444, 8471), (2561, 8084), (4042, 5122)]