20825728

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2113}}^1$

素因数の和:2145

約数の個数: 64

約数和(自身を含む): 51750720

約数和(自身を除く): 30924992

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 308, 352, 448, 616, 704, 896, 1232, 1408, 2113, 2464, 4226, 4928, 8452, 9856, 14791, 16904, 23243, 29582, 33808, 46486, 59164, 67616, 92972, 118328, 135232, 162701, 185944, 236656, 270464, 325402, 371888, 473312, 650804, 743776, 946624, 1301608, 1487552, 1893248, 2603216, 2975104, 5206432, 10412864, 20825728]

約数ペア:

[(1, 20825728), (2, 10412864), (4, 5206432), (7, 2975104), (8, 2603216), (11, 1893248), (14, 1487552), (16, 1301608), (22, 946624), (28, 743776), (32, 650804), (44, 473312), (56, 371888), (64, 325402), (77, 270464), (88, 236656), (112, 185944), (128, 162701), (154, 135232), (176, 118328), (224, 92972), (308, 67616), (352, 59164), (448, 46486), (616, 33808), (704, 29582), (896, 23243), (1232, 16904), (1408, 14791), (2113, 9856), (2464, 8452), (4226, 4928)]