392800

素因数分解:

$2^5\times 5^2\times {\mathrm{491}}^1$

素因数の和:511

約数の個数: 36

約数和(自身を含む): 960876

約数和(自身を除く): 568076

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 491, 800, 982, 1964, 2455, 3928, 4910, 7856, 9820, 12275, 15712, 19640, 24550, 39280, 49100, 78560, 98200, 196400, 392800]

約数ペア:

[(1, 392800), (2, 196400), (4, 98200), (5, 78560), (8, 49100), (10, 39280), (16, 24550), (20, 19640), (25, 15712), (32, 12275), (40, 9820), (50, 7856), (80, 4910), (100, 3928), (160, 2455), (200, 1964), (400, 982), (491, 800)]