20650784

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1$

素因数の和:91

約数の個数: 144

約数和(自身を含む): 55702080

約数和(自身を除く): 35051296

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 29, 32, 34, 44, 56, 58, 68, 77, 88, 112, 116, 119, 136, 154, 176, 187, 203, 224, 232, 238, 272, 289, 308, 319, 352, 374, 406, 464, 476, 493, 544, 578, 616, 638, 748, 812, 928, 952, 986, 1156, 1232, 1276, 1309, 1496, 1624, 1904, 1972, 2023, 2233, 2312, 2464, 2552, 2618, 2992, 3179, 3248, 3451, 3808, 3944, 4046, 4466, 4624, 5104, 5236, 5423, 5984, 6358, 6496, 6902, 7888, 8092, 8381, 8932, 9248, 10208, 10472, 10846, 12716, 13804, 15776, 16184, 16762, 17864, 20944, 21692, 22253, 25432, 27608, 32368, 33524, 35728, 37961, 41888, 43384, 44506, 50864, 55216, 58667, 64736, 67048, 71456, 75922, 86768, 89012, 92191, 101728, 110432, 117334, 134096, 151844, 173536, 178024, 184382, 234668, 268192, 303688, 356048, 368764, 469336, 607376, 645337, 712096, 737528, 938672, 1214752, 1290674, 1475056, 1877344, 2581348, 2950112, 5162696, 10325392, 20650784]

約数ペア:

[(1, 20650784), (2, 10325392), (4, 5162696), (7, 2950112), (8, 2581348), (11, 1877344), (14, 1475056), (16, 1290674), (17, 1214752), (22, 938672), (28, 737528), (29, 712096), (32, 645337), (34, 607376), (44, 469336), (56, 368764), (58, 356048), (68, 303688), (77, 268192), (88, 234668), (112, 184382), (116, 178024), (119, 173536), (136, 151844), (154, 134096), (176, 117334), (187, 110432), (203, 101728), (224, 92191), (232, 89012), (238, 86768), (272, 75922), (289, 71456), (308, 67048), (319, 64736), (352, 58667), (374, 55216), (406, 50864), (464, 44506), (476, 43384), (493, 41888), (544, 37961), (578, 35728), (616, 33524), (638, 32368), (748, 27608), (812, 25432), (928, 22253), (952, 21692), (986, 20944), (1156, 17864), (1232, 16762), (1276, 16184), (1309, 15776), (1496, 13804), (1624, 12716), (1904, 10846), (1972, 10472), (2023, 10208), (2233, 9248), (2312, 8932), (2464, 8381), (2552, 8092), (2618, 7888), (2992, 6902), (3179, 6496), (3248, 6358), (3451, 5984), (3808, 5423), (3944, 5236), (4046, 5104), (4466, 4624)]