80489620

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{18047}}^1$

素因数の和:18279

約数の個数: 24

約数和(自身を含む): 169795584

約数和(自身を除く): 89305964

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 18047, 36094, 72188, 90235, 180470, 360940, 4024481, 8048962, 16097924, 20122405, 40244810, 80489620]

約数ペア:

[(1, 80489620), (2, 40244810), (4, 20122405), (5, 16097924), (10, 8048962), (20, 4024481), (223, 360940), (446, 180470), (892, 90235), (1115, 72188), (2230, 36094), (4460, 18047)]