20181448

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 96

約数和(自身を含む): 48628800

約数和(自身を除く): 28447352

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 29, 34, 43, 56, 58, 68, 86, 116, 119, 136, 172, 203, 232, 238, 289, 301, 344, 406, 476, 493, 578, 602, 731, 812, 952, 986, 1156, 1204, 1247, 1462, 1624, 1972, 2023, 2312, 2408, 2494, 2924, 3451, 3944, 4046, 4988, 5117, 5848, 6902, 8092, 8381, 8729, 9976, 10234, 12427, 13804, 16184, 16762, 17458, 20468, 21199, 24854, 27608, 33524, 34916, 40936, 42398, 49708, 58667, 67048, 69832, 84796, 86989, 99416, 117334, 148393, 169592, 173978, 234668, 296786, 347956, 360383, 469336, 593572, 695912, 720766, 1187144, 1441532, 2522681, 2883064, 5045362, 10090724, 20181448]

約数ペア:

[(1, 20181448), (2, 10090724), (4, 5045362), (7, 2883064), (8, 2522681), (14, 1441532), (17, 1187144), (28, 720766), (29, 695912), (34, 593572), (43, 469336), (56, 360383), (58, 347956), (68, 296786), (86, 234668), (116, 173978), (119, 169592), (136, 148393), (172, 117334), (203, 99416), (232, 86989), (238, 84796), (289, 69832), (301, 67048), (344, 58667), (406, 49708), (476, 42398), (493, 40936), (578, 34916), (602, 33524), (731, 27608), (812, 24854), (952, 21199), (986, 20468), (1156, 17458), (1204, 16762), (1247, 16184), (1462, 13804), (1624, 12427), (1972, 10234), (2023, 9976), (2312, 8729), (2408, 8381), (2494, 8092), (2924, 6902), (3451, 5848), (3944, 5117), (4046, 4988)]