20005888

素因数分解:

$2^{10}\times 7^1\times {\mathrm{2791}}^1$

素因数の和:2818

約数の個数: 44

約数和(自身を含む): 45721792

約数和(自身を除く): 25715904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 2791, 3584, 5582, 7168, 11164, 19537, 22328, 39074, 44656, 78148, 89312, 156296, 178624, 312592, 357248, 625184, 714496, 1250368, 1428992, 2500736, 2857984, 5001472, 10002944, 20005888]

約数ペア:

[(1, 20005888), (2, 10002944), (4, 5001472), (7, 2857984), (8, 2500736), (14, 1428992), (16, 1250368), (28, 714496), (32, 625184), (56, 357248), (64, 312592), (112, 178624), (128, 156296), (224, 89312), (256, 78148), (448, 44656), (512, 39074), (896, 22328), (1024, 19537), (1792, 11164), (2791, 7168), (3584, 5582)]