71284780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{1063}}^1$

素因数の和:1558

約数の個数: 48

約数和(自身を含む): 171601920

約数和(自身を除く): 100317140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 479, 958, 1063, 1916, 2126, 2395, 3353, 4252, 4790, 5315, 6706, 7441, 9580, 10630, 13412, 14882, 16765, 21260, 29764, 33530, 37205, 67060, 74410, 148820, 509177, 1018354, 2036708, 2545885, 3564239, 5091770, 7128478, 10183540, 14256956, 17821195, 35642390, 71284780]

約数ペア:

[(1, 71284780), (2, 35642390), (4, 17821195), (5, 14256956), (7, 10183540), (10, 7128478), (14, 5091770), (20, 3564239), (28, 2545885), (35, 2036708), (70, 1018354), (140, 509177), (479, 148820), (958, 74410), (1063, 67060), (1916, 37205), (2126, 33530), (2395, 29764), (3353, 21260), (4252, 16765), (4790, 14882), (5315, 13412), (6706, 10630), (7441, 9580)]