39881590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 84132000

約数和(自身を除く): 44250410

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 199, 245, 398, 409, 490, 818, 995, 1393, 1990, 2045, 2786, 2863, 4090, 5726, 6965, 9751, 13930, 14315, 19502, 20041, 28630, 40082, 48755, 81391, 97510, 100205, 162782, 200410, 406955, 569737, 813910, 1139474, 2848685, 3988159, 5697370, 7976318, 19940795, 39881590]

約数ペア:

[(1, 39881590), (2, 19940795), (5, 7976318), (7, 5697370), (10, 3988159), (14, 2848685), (35, 1139474), (49, 813910), (70, 569737), (98, 406955), (199, 200410), (245, 162782), (398, 100205), (409, 97510), (490, 81391), (818, 48755), (995, 40082), (1393, 28630), (1990, 20041), (2045, 19502), (2786, 14315), (2863, 13930), (4090, 9751), (5726, 6965)]