77125720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{275449}}^1$

素因数の和:275467

約数の個数: 32

約数和(自身を含む): 198324000

約数和(自身を除く): 121198280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 275449, 550898, 1101796, 1377245, 1928143, 2203592, 2754490, 3856286, 5508980, 7712572, 9640715, 11017960, 15425144, 19281430, 38562860, 77125720]

約数ペア:

[(1, 77125720), (2, 38562860), (4, 19281430), (5, 15425144), (7, 11017960), (8, 9640715), (10, 7712572), (14, 5508980), (20, 3856286), (28, 2754490), (35, 2203592), (40, 1928143), (56, 1377245), (70, 1101796), (140, 550898), (280, 275449)]