788648980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{20047}}^1$

素因数の和:20344

約数の個数: 48

約数和(自身を含む): 1899588096

約数和(自身を除く): 1110939116

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 562, 1124, 1405, 1967, 2810, 3934, 5620, 7868, 9835, 19670, 20047, 39340, 40094, 80188, 100235, 140329, 200470, 280658, 400940, 561316, 701645, 1403290, 2806580, 5633207, 11266414, 22532828, 28166035, 39432449, 56332070, 78864898, 112664140, 157729796, 197162245, 394324490, 788648980]

約数ペア:

[(1, 788648980), (2, 394324490), (4, 197162245), (5, 157729796), (7, 112664140), (10, 78864898), (14, 56332070), (20, 39432449), (28, 28166035), (35, 22532828), (70, 11266414), (140, 5633207), (281, 2806580), (562, 1403290), (1124, 701645), (1405, 561316), (1967, 400940), (2810, 280658), (3934, 200470), (5620, 140329), (7868, 100235), (9835, 80188), (19670, 40094), (20047, 39340)]