155609680

素因数分解:

$2^4\times 5^1\times {\mathrm{1945121}}^1$

素因数の和:1945134

約数の個数: 20

約数和(自身を含む): 361792692

約数和(自身を除く): 206183012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1945121, 3890242, 7780484, 9725605, 15560968, 19451210, 31121936, 38902420, 77804840, 155609680]

約数ペア:

[(1, 155609680), (2, 77804840), (4, 38902420), (5, 31121936), (8, 19451210), (10, 15560968), (16, 9725605), (20, 7780484), (40, 3890242), (80, 1945121)]