19540864

素因数分解:

$2^7\times 7^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 45116640

約数和(自身を除く): 25575776

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 113, 128, 193, 224, 226, 386, 448, 452, 772, 791, 896, 904, 1351, 1544, 1582, 1808, 2702, 3088, 3164, 3616, 5404, 6176, 6328, 7232, 10808, 12352, 12656, 14464, 21616, 21809, 24704, 25312, 43232, 43618, 50624, 86464, 87236, 101248, 152663, 172928, 174472, 305326, 348944, 610652, 697888, 1221304, 1395776, 2442608, 2791552, 4885216, 9770432, 19540864]

約数ペア:

[(1, 19540864), (2, 9770432), (4, 4885216), (7, 2791552), (8, 2442608), (14, 1395776), (16, 1221304), (28, 697888), (32, 610652), (56, 348944), (64, 305326), (112, 174472), (113, 172928), (128, 152663), (193, 101248), (224, 87236), (226, 86464), (386, 50624), (448, 43618), (452, 43232), (772, 25312), (791, 24704), (896, 21809), (904, 21616), (1351, 14464), (1544, 12656), (1582, 12352), (1808, 10808), (2702, 7232), (3088, 6328), (3164, 6176), (3616, 5404)]