28772226

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{739}}^1$

素因数の和:860

約数の個数: 64

約数和(自身を含む): 73881600

約数和(自身を除く): 45109374

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 103, 126, 189, 206, 309, 378, 618, 721, 739, 927, 1442, 1478, 1854, 2163, 2217, 2781, 4326, 4434, 5173, 5562, 6489, 6651, 10346, 12978, 13302, 15519, 19467, 19953, 31038, 38934, 39906, 46557, 76117, 93114, 139671, 152234, 228351, 279342, 456702, 532819, 685053, 1065638, 1370106, 1598457, 2055159, 3196914, 4110318, 4795371, 9590742, 14386113, 28772226]

約数ペア:

[(1, 28772226), (2, 14386113), (3, 9590742), (6, 4795371), (7, 4110318), (9, 3196914), (14, 2055159), (18, 1598457), (21, 1370106), (27, 1065638), (42, 685053), (54, 532819), (63, 456702), (103, 279342), (126, 228351), (189, 152234), (206, 139671), (309, 93114), (378, 76117), (618, 46557), (721, 39906), (739, 38934), (927, 31038), (1442, 19953), (1478, 19467), (1854, 15519), (2163, 13302), (2217, 12978), (2781, 10346), (4326, 6651), (4434, 6489), (5173, 5562)]