20825804548

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{821}}^1\times {\mathrm{1061}}^1$

素因数の和:2068

約数の個数: 48

約数和(自身を含む): 37642207680

約数和(自身を除く): 16816403132

約数列:

[1, 2, 4, 43, 86, 139, 172, 278, 556, 821, 1061, 1642, 2122, 3284, 4244, 5977, 11954, 23908, 35303, 45623, 70606, 91246, 114119, 141212, 147479, 182492, 228238, 294958, 456476, 589916, 871081, 1742162, 3484324, 4907117, 6341597, 9814234, 12683194, 19628468, 25366388, 37456483, 74912966, 121080259, 149825932, 242160518, 484321036, 5206451137, 10412902274, 20825804548]

約数ペア:

[(1, 20825804548), (2, 10412902274), (4, 5206451137), (43, 484321036), (86, 242160518), (139, 149825932), (172, 121080259), (278, 74912966), (556, 37456483), (821, 25366388), (1061, 19628468), (1642, 12683194), (2122, 9814234), (3284, 6341597), (4244, 4907117), (5977, 3484324), (11954, 1742162), (23908, 871081), (35303, 589916), (45623, 456476), (70606, 294958), (91246, 228238), (114119, 182492), (141212, 147479)]