26979820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1871}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 65415168

約数和(自身を除く): 38435348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 1871, 2060, 2884, 3605, 3742, 7210, 7484, 9355, 13097, 14420, 18710, 26194, 37420, 52388, 65485, 130970, 192713, 261940, 385426, 770852, 963565, 1348991, 1927130, 2697982, 3854260, 5395964, 6744955, 13489910, 26979820]

約数ペア:

[(1, 26979820), (2, 13489910), (4, 6744955), (5, 5395964), (7, 3854260), (10, 2697982), (14, 1927130), (20, 1348991), (28, 963565), (35, 770852), (70, 385426), (103, 261940), (140, 192713), (206, 130970), (412, 65485), (515, 52388), (721, 37420), (1030, 26194), (1442, 18710), (1871, 14420), (2060, 13097), (2884, 9355), (3605, 7484), (3742, 7210)]