129561880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{66103}}^1$

素因数の和:66128

約数の個数: 48

約数和(自身を含む): 339113520

約数和(自身を除く): 209551640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 66103, 132206, 264412, 330515, 462721, 528824, 661030, 925442, 1322060, 1850884, 2313605, 2644120, 3239047, 3701768, 4627210, 6478094, 9254420, 12956188, 16195235, 18508840, 25912376, 32390470, 64780940, 129561880]

約数ペア:

[(1, 129561880), (2, 64780940), (4, 32390470), (5, 25912376), (7, 18508840), (8, 16195235), (10, 12956188), (14, 9254420), (20, 6478094), (28, 4627210), (35, 3701768), (40, 3239047), (49, 2644120), (56, 2313605), (70, 1850884), (98, 1322060), (140, 925442), (196, 661030), (245, 528824), (280, 462721), (392, 330515), (490, 264412), (980, 132206), (1960, 66103)]