71851880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{12923}}^1$

素因数の和:13073

約数の個数: 32

約数和(自身を含む): 162842400

約数和(自身を除く): 90990520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 12923, 25846, 51692, 64615, 103384, 129230, 258460, 516920, 1796297, 3592594, 7185188, 8981485, 14370376, 17962970, 35925940, 71851880]

約数ペア:

[(1, 71851880), (2, 35925940), (4, 17962970), (5, 14370376), (8, 8981485), (10, 7185188), (20, 3592594), (40, 1796297), (139, 516920), (278, 258460), (556, 129230), (695, 103384), (1112, 64615), (1390, 51692), (2780, 25846), (5560, 12923)]