642993568

素因数分解:

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

素因数の和:211

約数の個数: 144

約数和(自身を含む): 1561472640

約数和(自身を除く): 918479072

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, 961, 992, 1442, 1624, 1648, 1736, 1798, 1922, 2884, 2987, 3193, 3248, 3296, 3472, 3596, 3844, 5768, 5974, 6293, 6386, 6496, 6727, 6944, 7192, 7688, 11536, 11948, 12586, 12772, 13454, 14384, 15376, 20909, 22351, 23072, 23896, 25172, 25544, 26908, 27869, 28768, 30752, 41818, 44702, 47792, 50344, 51088, 53816, 55738, 83636, 89404, 92597, 95584, 98983, 100688, 102176, 107632, 111476, 167272, 178808, 185194, 195083, 197966, 201376, 215264, 222952, 334544, 357616, 370388, 390166, 395932, 445904, 648179, 669088, 692881, 715232, 740776, 780332, 791864, 891808, 1296358, 1385762, 1481552, 1560664, 1583728, 2592716, 2771524, 2870507, 2963104, 3121328, 3167456, 5185432, 5543048, 5741014, 6242656, 10370864, 11086096, 11482028, 20093549, 20741728, 22172192, 22964056, 40187098, 45928112, 80374196, 91856224, 160748392, 321496784, 642993568]

約数ペア:

[(1, 642993568), (2, 321496784), (4, 160748392), (7, 91856224), (8, 80374196), (14, 45928112), (16, 40187098), (28, 22964056), (29, 22172192), (31, 20741728), (32, 20093549), (56, 11482028), (58, 11086096), (62, 10370864), (103, 6242656), (112, 5741014), (116, 5543048), (124, 5185432), (203, 3167456), (206, 3121328), (217, 2963104), (224, 2870507), (232, 2771524), (248, 2592716), (406, 1583728), (412, 1560664), (434, 1481552), (464, 1385762), (496, 1296358), (721, 891808), (812, 791864), (824, 780332), (868, 740776), (899, 715232), (928, 692881), (961, 669088), (992, 648179), (1442, 445904), (1624, 395932), (1648, 390166), (1736, 370388), (1798, 357616), (1922, 334544), (2884, 222952), (2987, 215264), (3193, 201376), (3248, 197966), (3296, 195083), (3472, 185194), (3596, 178808), (3844, 167272), (5768, 111476), (5974, 107632), (6293, 102176), (6386, 100688), (6496, 98983), (6727, 95584), (6944, 92597), (7192, 89404), (7688, 83636), (11536, 55738), (11948, 53816), (12586, 51088), (12772, 50344), (13454, 47792), (14384, 44702), (15376, 41818), (20909, 30752), (22351, 28768), (23072, 27869), (23896, 26908), (25172, 25544)]