19880896

素因数分解:

$2^6\times 7^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:441

約数の個数: 56

約数和(自身を含む): 45516800

約数和(自身を除く): 25635904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 199, 223, 224, 398, 446, 448, 796, 892, 1393, 1561, 1592, 1784, 2786, 3122, 3184, 3568, 5572, 6244, 6368, 7136, 11144, 12488, 12736, 14272, 22288, 24976, 44377, 44576, 49952, 88754, 89152, 99904, 177508, 310639, 355016, 621278, 710032, 1242556, 1420064, 2485112, 2840128, 4970224, 9940448, 19880896]

約数ペア:

[(1, 19880896), (2, 9940448), (4, 4970224), (7, 2840128), (8, 2485112), (14, 1420064), (16, 1242556), (28, 710032), (32, 621278), (56, 355016), (64, 310639), (112, 177508), (199, 99904), (223, 89152), (224, 88754), (398, 49952), (446, 44576), (448, 44377), (796, 24976), (892, 22288), (1393, 14272), (1561, 12736), (1592, 12488), (1784, 11144), (2786, 7136), (3122, 6368), (3184, 6244), (3568, 5572)]