1982800

素因数分解:

$2^4\times 5^2\times {\mathrm{4957}}^1$

素因数の和:4975

約数の個数: 30

約数和(自身を含む): 4764638

約数和(自身を除く): 2781838

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4957, 9914, 19828, 24785, 39656, 49570, 79312, 99140, 123925, 198280, 247850, 396560, 495700, 991400, 1982800]

約数ペア:

[(1, 1982800), (2, 991400), (4, 495700), (5, 396560), (8, 247850), (10, 198280), (16, 123925), (20, 99140), (25, 79312), (40, 49570), (50, 39656), (80, 24785), (100, 19828), (200, 9914), (400, 4957)]