38940940

素因数分解:

$2^2\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{1907}}^1$

素因数の和:2937

約数の個数: 24

約数和(自身を含む): 81898992

約数和(自身を除く): 42958052

約数列:

[1, 2, 4, 5, 10, 20, 1021, 1907, 2042, 3814, 4084, 5105, 7628, 9535, 10210, 19070, 20420, 38140, 1947047, 3894094, 7788188, 9735235, 19470470, 38940940]

約数ペア:

[(1, 38940940), (2, 19470470), (4, 9735235), (5, 7788188), (10, 3894094), (20, 1947047), (1021, 38140), (1907, 20420), (2042, 19070), (3814, 10210), (4084, 9535), (5105, 7628)]