2009798980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{63241}}^1$

素因数の和:63484

約数の個数: 48

約数和(自身を含む): 4844843136

約数和(自身を除く): 2835044156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 454, 908, 1135, 1589, 2270, 3178, 4540, 6356, 7945, 15890, 31780, 63241, 126482, 252964, 316205, 442687, 632410, 885374, 1264820, 1770748, 2213435, 4426870, 8853740, 14355707, 28711414, 57422828, 71778535, 100489949, 143557070, 200979898, 287114140, 401959796, 502449745, 1004899490, 2009798980]

約数ペア:

[(1, 2009798980), (2, 1004899490), (4, 502449745), (5, 401959796), (7, 287114140), (10, 200979898), (14, 143557070), (20, 100489949), (28, 71778535), (35, 57422828), (70, 28711414), (140, 14355707), (227, 8853740), (454, 4426870), (908, 2213435), (1135, 1770748), (1589, 1264820), (2270, 885374), (3178, 632410), (4540, 442687), (6356, 316205), (7945, 252964), (15890, 126482), (31780, 63241)]