401987000

素因数分解:

$2^3\times 5^3\times {\mathrm{401987}}^1$

素因数の和:402008

約数の個数: 32

約数和(自身を含む): 940651920

約数和(自身を除く): 538664920

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 401987, 803974, 1607948, 2009935, 3215896, 4019870, 8039740, 10049675, 16079480, 20099350, 40198700, 50248375, 80397400, 100496750, 200993500, 401987000]

約数ペア:

[(1, 401987000), (2, 200993500), (4, 100496750), (5, 80397400), (8, 50248375), (10, 40198700), (20, 20099350), (25, 16079480), (40, 10049675), (50, 8039740), (100, 4019870), (125, 3215896), (200, 2009935), (250, 1607948), (500, 803974), (1000, 401987)]