20705552

素因数分解:

$2^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{929}}^1$

素因数の和:1143

約数の個数: 40

約数和(自身を含む): 46128000

約数和(自身を除く): 25422448

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 199, 398, 796, 929, 1393, 1592, 1858, 2786, 3184, 3716, 5572, 6503, 7432, 11144, 13006, 14864, 22288, 26012, 52024, 104048, 184871, 369742, 739484, 1294097, 1478968, 2588194, 2957936, 5176388, 10352776, 20705552]

約数ペア:

[(1, 20705552), (2, 10352776), (4, 5176388), (7, 2957936), (8, 2588194), (14, 1478968), (16, 1294097), (28, 739484), (56, 369742), (112, 184871), (199, 104048), (398, 52024), (796, 26012), (929, 22288), (1393, 14864), (1592, 13006), (1858, 11144), (2786, 7432), (3184, 6503), (3716, 5572)]