27981275

素因数分解:

$5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1259}}^1$

素因数の和:1403

約数の個数: 24

約数和(自身を含む): 39997440

約数和(自身を除く): 12016165

約数列:

[1, 5, 7, 25, 35, 127, 175, 635, 889, 1259, 3175, 4445, 6295, 8813, 22225, 31475, 44065, 159893, 220325, 799465, 1119251, 3997325, 5596255, 27981275]

約数ペア:

[(1, 27981275), (5, 5596255), (7, 3997325), (25, 1119251), (35, 799465), (127, 220325), (175, 159893), (635, 44065), (889, 31475), (1259, 22225), (3175, 8813), (4445, 6295)]