66281075

素因数分解:

$5^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{887}}^1$

素因数の和:972

約数の個数: 36

約数和(自身を含む): 97283952

約数和(自身を除く): 31002877

約数列:

[1, 5, 7, 25, 35, 49, 61, 175, 245, 305, 427, 887, 1225, 1525, 2135, 2989, 4435, 6209, 10675, 14945, 22175, 31045, 43463, 54107, 74725, 155225, 217315, 270535, 378749, 1086575, 1352675, 1893745, 2651243, 9468725, 13256215, 66281075]

約数ペア:

[(1, 66281075), (5, 13256215), (7, 9468725), (25, 2651243), (35, 1893745), (49, 1352675), (61, 1086575), (175, 378749), (245, 270535), (305, 217315), (427, 155225), (887, 74725), (1225, 54107), (1525, 43463), (2135, 31045), (2989, 22175), (4435, 14945), (6209, 10675)]