25487072

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 54486432

約数和(自身を除く): 28999360

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 197, 208, 311, 394, 416, 622, 788, 1244, 1576, 2488, 2561, 3152, 4043, 4976, 5122, 6304, 8086, 9952, 10244, 16172, 20488, 32344, 40976, 61267, 64688, 81952, 122534, 129376, 245068, 490136, 796471, 980272, 1592942, 1960544, 3185884, 6371768, 12743536, 25487072]

約数ペア:

[(1, 25487072), (2, 12743536), (4, 6371768), (8, 3185884), (13, 1960544), (16, 1592942), (26, 980272), (32, 796471), (52, 490136), (104, 245068), (197, 129376), (208, 122534), (311, 81952), (394, 64688), (416, 61267), (622, 40976), (788, 32344), (1244, 20488), (1576, 16172), (2488, 10244), (2561, 9952), (3152, 8086), (4043, 6304), (4976, 5122)]