139731340

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{20369}}^1$

素因数の和:20399

約数の個数: 48

約数和(自身を含む): 342216000

約数和(自身を除く): 202484660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 20369, 40738, 81476, 101845, 142583, 203690, 285166, 407380, 570332, 712915, 998081, 1425830, 1996162, 2851660, 3992324, 4990405, 6986567, 9980810, 13973134, 19961620, 27946268, 34932835, 69865670, 139731340]

約数ペア:

[(1, 139731340), (2, 69865670), (4, 34932835), (5, 27946268), (7, 19961620), (10, 13973134), (14, 9980810), (20, 6986567), (28, 4990405), (35, 3992324), (49, 2851660), (70, 1996162), (98, 1425830), (140, 998081), (196, 712915), (245, 570332), (343, 407380), (490, 285166), (686, 203690), (980, 142583), (1372, 101845), (1715, 81476), (3430, 40738), (6860, 20369)]