81473960

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{4457}}^1$

素因数の和:4925

約数の個数: 32

約数和(自身を含む): 183758760

約数和(自身を除く): 102284800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1828, 2285, 3656, 4457, 4570, 8914, 9140, 17828, 18280, 22285, 35656, 44570, 89140, 178280, 2036849, 4073698, 8147396, 10184245, 16294792, 20368490, 40736980, 81473960]

約数ペア:

[(1, 81473960), (2, 40736980), (4, 20368490), (5, 16294792), (8, 10184245), (10, 8147396), (20, 4073698), (40, 2036849), (457, 178280), (914, 89140), (1828, 44570), (2285, 35656), (3656, 22285), (4457, 18280), (4570, 17828), (8914, 9140)]