805480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1549}}^1$

素因数の和:1573

約数の個数: 32

約数和(自身を含む): 1953000

約数和(自身を除く): 1147520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1549, 3098, 6196, 7745, 12392, 15490, 20137, 30980, 40274, 61960, 80548, 100685, 161096, 201370, 402740, 805480]

約数ペア:

[(1, 805480), (2, 402740), (4, 201370), (5, 161096), (8, 100685), (10, 80548), (13, 61960), (20, 40274), (26, 30980), (40, 20137), (52, 15490), (65, 12392), (104, 7745), (130, 6196), (260, 3098), (520, 1549)]