258860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^2$

素因数の和:102

約数の個数: 36

約数和(自身を含む): 636048

約数和(自身を除く): 377188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 1849, 3010, 3698, 6020, 7396, 9245, 12943, 18490, 25886, 36980, 51772, 64715, 129430, 258860]

約数ペア:

[(1, 258860), (2, 129430), (4, 64715), (5, 51772), (7, 36980), (10, 25886), (14, 18490), (20, 12943), (28, 9245), (35, 7396), (43, 6020), (70, 3698), (86, 3010), (140, 1849), (172, 1505), (215, 1204), (301, 860), (430, 602)]