18974464

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 41207040

約数和(自身を除く): 22232576

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 47, 64, 76, 83, 94, 128, 152, 166, 188, 256, 304, 332, 376, 608, 664, 752, 893, 1216, 1328, 1504, 1577, 1786, 2432, 2656, 3008, 3154, 3572, 3901, 4864, 5312, 6016, 6308, 7144, 7802, 10624, 12032, 12616, 14288, 15604, 21248, 25232, 28576, 31208, 50464, 57152, 62416, 74119, 100928, 114304, 124832, 148238, 201856, 228608, 249664, 296476, 403712, 499328, 592952, 998656, 1185904, 2371808, 4743616, 9487232, 18974464]

約数ペア:

[(1, 18974464), (2, 9487232), (4, 4743616), (8, 2371808), (16, 1185904), (19, 998656), (32, 592952), (38, 499328), (47, 403712), (64, 296476), (76, 249664), (83, 228608), (94, 201856), (128, 148238), (152, 124832), (166, 114304), (188, 100928), (256, 74119), (304, 62416), (332, 57152), (376, 50464), (608, 31208), (664, 28576), (752, 25232), (893, 21248), (1216, 15604), (1328, 14288), (1504, 12616), (1577, 12032), (1786, 10624), (2432, 7802), (2656, 7144), (3008, 6308), (3154, 6016), (3572, 5312), (3901, 4864)]