254149520

素因数分解:

$2^4\times 5^1\times {\mathrm{3176869}}^1$

素因数の和:3176882

約数の個数: 20

約数和(自身を含む): 590897820

約数和(自身を除く): 336748300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3176869, 6353738, 12707476, 15884345, 25414952, 31768690, 50829904, 63537380, 127074760, 254149520]

約数ペア:

[(1, 254149520), (2, 127074760), (4, 63537380), (5, 50829904), (8, 31768690), (10, 25414952), (16, 15884345), (20, 12707476), (40, 6353738), (80, 3176869)]