420210.0000000

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 14708736

約数和(自身を除く): 7837900

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 47, 92, 94, 161, 188, 227, 322, 329, 454, 644, 658, 908, 1081, 1316, 1589, 2162, 3178, 4324, 5221, 6356, 7567, 10442, 10669, 15134, 20884, 21338, 30268, 36547, 42676, 73094, 74683, 146188, 149366, 245387, 298732, 490774, 981548, 1717709, 3435418, 6870836]

約数ペア:

[(1, 6870836), (2, 3435418), (4, 1717709), (7, 981548), (14, 490774), (23, 298732), (28, 245387), (46, 149366), (47, 146188), (92, 74683), (94, 73094), (161, 42676), (188, 36547), (227, 30268), (322, 21338), (329, 20884), (454, 15134), (644, 10669), (658, 10442), (908, 7567), (1081, 6356), (1316, 5221), (1589, 4324), (2162, 3178)]