8142820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1187}}^1$

素因数の和:1217

約数の個数: 48

約数和(自身を含む): 19958400

約数和(自身を除く): 11815580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1187, 1372, 1715, 2374, 3430, 4748, 5935, 6860, 8309, 11870, 16618, 23740, 33236, 41545, 58163, 83090, 116326, 166180, 232652, 290815, 407141, 581630, 814282, 1163260, 1628564, 2035705, 4071410, 8142820]

約数ペア:

[(1, 8142820), (2, 4071410), (4, 2035705), (5, 1628564), (7, 1163260), (10, 814282), (14, 581630), (20, 407141), (28, 290815), (35, 232652), (49, 166180), (70, 116326), (98, 83090), (140, 58163), (196, 41545), (245, 33236), (343, 23740), (490, 16618), (686, 11870), (980, 8309), (1187, 6860), (1372, 5935), (1715, 4748), (2374, 3430)]