91915880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{328271}}^1$

素因数の和:328289

約数の個数: 32

約数和(自身を含む): 236355840

約数和(自身を除く): 144439960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 328271, 656542, 1313084, 1641355, 2297897, 2626168, 3282710, 4595794, 6565420, 9191588, 11489485, 13130840, 18383176, 22978970, 45957940, 91915880]

約数ペア:

[(1, 91915880), (2, 45957940), (4, 22978970), (5, 18383176), (7, 13130840), (8, 11489485), (10, 9191588), (14, 6565420), (20, 4595794), (28, 3282710), (35, 2626168), (40, 2297897), (56, 1641355), (70, 1313084), (140, 656542), (280, 328271)]