20741728

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 50319360

約数和(自身を除く): 29577632

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 31, 32, 56, 58, 62, 103, 112, 116, 124, 203, 206, 217, 224, 232, 248, 406, 412, 434, 464, 496, 721, 812, 824, 868, 899, 928, 992, 1442, 1624, 1648, 1736, 1798, 2884, 2987, 3193, 3248, 3296, 3472, 3596, 5768, 5974, 6293, 6386, 6496, 6944, 7192, 11536, 11948, 12586, 12772, 14384, 20909, 22351, 23072, 23896, 25172, 25544, 28768, 41818, 44702, 47792, 50344, 51088, 83636, 89404, 92597, 95584, 100688, 102176, 167272, 178808, 185194, 201376, 334544, 357616, 370388, 648179, 669088, 715232, 740776, 1296358, 1481552, 2592716, 2963104, 5185432, 10370864, 20741728]

約数ペア:

[(1, 20741728), (2, 10370864), (4, 5185432), (7, 2963104), (8, 2592716), (14, 1481552), (16, 1296358), (28, 740776), (29, 715232), (31, 669088), (32, 648179), (56, 370388), (58, 357616), (62, 334544), (103, 201376), (112, 185194), (116, 178808), (124, 167272), (203, 102176), (206, 100688), (217, 95584), (224, 92597), (232, 89404), (248, 83636), (406, 51088), (412, 50344), (434, 47792), (464, 44702), (496, 41818), (721, 28768), (812, 25544), (824, 25172), (868, 23896), (899, 23072), (928, 22351), (992, 20909), (1442, 14384), (1624, 12772), (1648, 12586), (1736, 11948), (1798, 11536), (2884, 7192), (2987, 6944), (3193, 6496), (3248, 6386), (3296, 6293), (3472, 5974), (3596, 5768)]