71489740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{563}}^1\times {\mathrm{907}}^1$

素因数の和:1486

約数の個数: 48

約数和(自身を含む): 172069632

約数和(自身を除く): 100579892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 563, 907, 1126, 1814, 2252, 2815, 3628, 3941, 4535, 5630, 6349, 7882, 9070, 11260, 12698, 15764, 18140, 19705, 25396, 31745, 39410, 63490, 78820, 126980, 510641, 1021282, 2042564, 2553205, 3574487, 5106410, 7148974, 10212820, 14297948, 17872435, 35744870, 71489740]

約数ペア:

[(1, 71489740), (2, 35744870), (4, 17872435), (5, 14297948), (7, 10212820), (10, 7148974), (14, 5106410), (20, 3574487), (28, 2553205), (35, 2042564), (70, 1021282), (140, 510641), (563, 126980), (907, 78820), (1126, 63490), (1814, 39410), (2252, 31745), (2815, 25396), (3628, 19705), (3941, 18140), (4535, 15764), (5630, 12698), (6349, 11260), (7882, 9070)]