155604880

素因数分解:

$2^4\times 5^1\times {\mathrm{1945061}}^1$

素因数の和:1945074

約数の個数: 20

約数和(自身を含む): 361781532

約数和(自身を除く): 206176652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1945061, 3890122, 7780244, 9725305, 15560488, 19450610, 31120976, 38901220, 77802440, 155604880]

約数ペア:

[(1, 155604880), (2, 77802440), (4, 38901220), (5, 31120976), (8, 19450610), (10, 15560488), (16, 9725305), (20, 7780244), (40, 3890122), (80, 1945061)]