51881480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{185291}}^1$

素因数の和:185309

約数の個数: 32

約数和(自身を含む): 133410240

約数和(自身を除く): 81528760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 185291, 370582, 741164, 926455, 1297037, 1482328, 1852910, 2594074, 3705820, 5188148, 6485185, 7411640, 10376296, 12970370, 25940740, 51881480]

約数ペア:

[(1, 51881480), (2, 25940740), (4, 12970370), (5, 10376296), (7, 7411640), (8, 6485185), (10, 5188148), (14, 3705820), (20, 2594074), (28, 1852910), (35, 1482328), (40, 1297037), (56, 926455), (70, 741164), (140, 370582), (280, 185291)]