678561575

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{4751}}^1$

素因数の和:4987

約数の個数: 24

約数和(自身を含む): 875033280

約数和(自身を除く): 196471705

約数列:

[1, 5, 25, 29, 145, 197, 725, 985, 4751, 4925, 5713, 23755, 28565, 118775, 137779, 142825, 688895, 935947, 3444475, 4679735, 23398675, 27142463, 135712315, 678561575]

約数ペア:

[(1, 678561575), (5, 135712315), (25, 27142463), (29, 23398675), (145, 4679735), (197, 3444475), (725, 935947), (985, 688895), (4751, 142825), (4925, 137779), (5713, 118775), (23755, 28565)]