388878800

素因数分解:

$2^4\times 5^2\times {\mathrm{972197}}^1$

素因数の和:972215

約数の個数: 30

約数和(自身を含む): 934282278

約数和(自身を除く): 545403478

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 972197, 1944394, 3888788, 4860985, 7777576, 9721970, 15555152, 19443940, 24304925, 38887880, 48609850, 77775760, 97219700, 194439400, 388878800]

約数ペア:

[(1, 388878800), (2, 194439400), (4, 97219700), (5, 77775760), (8, 48609850), (10, 38887880), (16, 24304925), (20, 19443940), (25, 15555152), (40, 9721970), (50, 7777576), (80, 4860985), (100, 3888788), (200, 1944394), (400, 972197)]