565520420

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{72689}}^1$

素因数の和:73087

約数の個数: 24

約数和(自身を含む): 1190662200

約数和(自身を除く): 625141780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 72689, 145378, 290756, 363445, 726890, 1453780, 28276021, 56552042, 113104084, 141380105, 282760210, 565520420]

約数ペア:

[(1, 565520420), (2, 282760210), (4, 141380105), (5, 113104084), (10, 56552042), (20, 28276021), (389, 1453780), (778, 726890), (1556, 363445), (1945, 290756), (3890, 145378), (7780, 72689)]