139851880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71353}}^1$

素因数の和:71378

約数の個数: 48

約数和(自身を含む): 366046020

約数和(自身を除く): 226194140

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, 71353, 142706, 285412, 356765, 499471, 570824, 713530, 998942, 1427060, 1997884, 2497355, 2854120, 3496297, 3995768, 4994710, 6992594, 9989420, 13985188, 17481485, 19978840, 27970376, 34962970, 69925940, 139851880]

約数ペア:

[(1, 139851880), (2, 69925940), (4, 34962970), (5, 27970376), (7, 19978840), (8, 17481485), (10, 13985188), (14, 9989420), (20, 6992594), (28, 4994710), (35, 3995768), (40, 3496297), (49, 2854120), (56, 2497355), (70, 1997884), (98, 1427060), (140, 998942), (196, 713530), (245, 570824), (280, 499471), (392, 356765), (490, 285412), (980, 142706), (1960, 71353)]