20449872

素因数分解:

$2^4\times 3^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:185

約数の個数: 120

約数和(自身を含む): 60933600

約数和(自身を除く): 40483728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 36, 48, 58, 59, 72, 83, 87, 116, 118, 144, 166, 174, 177, 232, 236, 249, 261, 332, 348, 354, 464, 472, 498, 522, 531, 664, 696, 708, 747, 944, 996, 1044, 1062, 1328, 1392, 1416, 1494, 1711, 1992, 2088, 2124, 2407, 2832, 2988, 3422, 3984, 4176, 4248, 4814, 4897, 5133, 5976, 6844, 7221, 8496, 9628, 9794, 10266, 11952, 13688, 14442, 14691, 15399, 19256, 19588, 20532, 21663, 27376, 28884, 29382, 30798, 38512, 39176, 41064, 43326, 44073, 57768, 58764, 61596, 78352, 82128, 86652, 88146, 115536, 117528, 123192, 142013, 173304, 176292, 235056, 246384, 284026, 346608, 352584, 426039, 568052, 705168, 852078, 1136104, 1278117, 1704156, 2272208, 2556234, 3408312, 5112468, 6816624, 10224936, 20449872]

約数ペア:

[(1, 20449872), (2, 10224936), (3, 6816624), (4, 5112468), (6, 3408312), (8, 2556234), (9, 2272208), (12, 1704156), (16, 1278117), (18, 1136104), (24, 852078), (29, 705168), (36, 568052), (48, 426039), (58, 352584), (59, 346608), (72, 284026), (83, 246384), (87, 235056), (116, 176292), (118, 173304), (144, 142013), (166, 123192), (174, 117528), (177, 115536), (232, 88146), (236, 86652), (249, 82128), (261, 78352), (332, 61596), (348, 58764), (354, 57768), (464, 44073), (472, 43326), (498, 41064), (522, 39176), (531, 38512), (664, 30798), (696, 29382), (708, 28884), (747, 27376), (944, 21663), (996, 20532), (1044, 19588), (1062, 19256), (1328, 15399), (1392, 14691), (1416, 14442), (1494, 13688), (1711, 11952), (1992, 10266), (2088, 9794), (2124, 9628), (2407, 8496), (2832, 7221), (2988, 6844), (3422, 5976), (3984, 5133), (4176, 4897), (4248, 4814)]