19611550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 42095520

約数和(自身を除く): 22483970

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 137, 175, 274, 350, 409, 685, 818, 959, 1370, 1918, 2045, 2863, 3425, 4090, 4795, 5726, 6850, 9590, 10225, 14315, 20450, 23975, 28630, 47950, 56033, 71575, 112066, 143150, 280165, 392231, 560330, 784462, 1400825, 1961155, 2801650, 3922310, 9805775, 19611550]

約数ペア:

[(1, 19611550), (2, 9805775), (5, 3922310), (7, 2801650), (10, 1961155), (14, 1400825), (25, 784462), (35, 560330), (50, 392231), (70, 280165), (137, 143150), (175, 112066), (274, 71575), (350, 56033), (409, 47950), (685, 28630), (818, 23975), (959, 20450), (1370, 14315), (1918, 10225), (2045, 9590), (2863, 6850), (3425, 5726), (4090, 4795)]