28491008

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1223}}^1$

素因数の和:1259

約数の個数: 72

約数和(自身を含む): 70051968

約数和(自身を除く): 41560960

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 896, 1223, 1456, 1664, 1792, 2446, 2912, 3328, 4892, 5824, 8561, 9784, 11648, 15899, 17122, 19568, 23296, 31798, 34244, 39136, 63596, 68488, 78272, 111293, 127192, 136976, 156544, 222586, 254384, 273952, 313088, 445172, 508768, 547904, 890344, 1017536, 1095808, 1780688, 2035072, 2191616, 3561376, 4070144, 7122752, 14245504, 28491008]

約数ペア:

[(1, 28491008), (2, 14245504), (4, 7122752), (7, 4070144), (8, 3561376), (13, 2191616), (14, 2035072), (16, 1780688), (26, 1095808), (28, 1017536), (32, 890344), (52, 547904), (56, 508768), (64, 445172), (91, 313088), (104, 273952), (112, 254384), (128, 222586), (182, 156544), (208, 136976), (224, 127192), (256, 111293), (364, 78272), (416, 68488), (448, 63596), (728, 39136), (832, 34244), (896, 31798), (1223, 23296), (1456, 19568), (1664, 17122), (1792, 15899), (2446, 11648), (2912, 9784), (3328, 8561), (4892, 5824)]