18845540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{593}}^1$

素因数の和:836

約数の個数: 48

約数和(自身を含む): 45505152

約数和(自身を除く): 26659612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 454, 593, 908, 1135, 1186, 1589, 2270, 2372, 2965, 3178, 4151, 4540, 5930, 6356, 7945, 8302, 11860, 15890, 16604, 20755, 31780, 41510, 83020, 134611, 269222, 538444, 673055, 942277, 1346110, 1884554, 2692220, 3769108, 4711385, 9422770, 18845540]

約数ペア:

[(1, 18845540), (2, 9422770), (4, 4711385), (5, 3769108), (7, 2692220), (10, 1884554), (14, 1346110), (20, 942277), (28, 673055), (35, 538444), (70, 269222), (140, 134611), (227, 83020), (454, 41510), (593, 31780), (908, 20755), (1135, 16604), (1186, 15890), (1589, 11860), (2270, 8302), (2372, 7945), (2965, 6356), (3178, 5930), (4151, 4540)]