18965408

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 96

約数和(自身を含む): 47900160

約数和(自身を除く): 28934752

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 43, 44, 56, 77, 86, 88, 112, 154, 172, 176, 179, 224, 301, 308, 344, 352, 358, 473, 602, 616, 688, 716, 946, 1204, 1232, 1253, 1376, 1432, 1892, 1969, 2408, 2464, 2506, 2864, 3311, 3784, 3938, 4816, 5012, 5728, 6622, 7568, 7697, 7876, 9632, 10024, 13244, 13783, 15136, 15394, 15752, 20048, 26488, 27566, 30788, 31504, 40096, 52976, 53879, 55132, 61576, 63008, 84667, 105952, 107758, 110264, 123152, 169334, 215516, 220528, 246304, 338668, 431032, 441056, 592669, 677336, 862064, 1185338, 1354672, 1724128, 2370676, 2709344, 4741352, 9482704, 18965408]

約数ペア:

[(1, 18965408), (2, 9482704), (4, 4741352), (7, 2709344), (8, 2370676), (11, 1724128), (14, 1354672), (16, 1185338), (22, 862064), (28, 677336), (32, 592669), (43, 441056), (44, 431032), (56, 338668), (77, 246304), (86, 220528), (88, 215516), (112, 169334), (154, 123152), (172, 110264), (176, 107758), (179, 105952), (224, 84667), (301, 63008), (308, 61576), (344, 55132), (352, 53879), (358, 52976), (473, 40096), (602, 31504), (616, 30788), (688, 27566), (716, 26488), (946, 20048), (1204, 15752), (1232, 15394), (1253, 15136), (1376, 13783), (1432, 13244), (1892, 10024), (1969, 9632), (2408, 7876), (2464, 7697), (2506, 7568), (2864, 6622), (3311, 5728), (3784, 5012), (3938, 4816)]