20512694900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{65099}}^1$

素因数の和:65273

約数の個数: 72

約数和(自身を含む): 46787630400

約数和(自身を除く): 26274935500

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 137, 230, 274, 460, 548, 575, 685, 1150, 1370, 2300, 2740, 3151, 3425, 6302, 6850, 12604, 13700, 15755, 31510, 63020, 65099, 78775, 130198, 157550, 260396, 315100, 325495, 650990, 1301980, 1497277, 1627475, 2994554, 3254950, 5989108, 6509900, 7486385, 8918563, 14972770, 17837126, 29945540, 35674252, 37431925, 44592815, 74863850, 89185630, 149727700, 178371260, 205126949, 222964075, 410253898, 445928150, 820507796, 891856300, 1025634745, 2051269490, 4102538980, 5128173725, 10256347450, 20512694900]

約数ペア:

[(1, 20512694900), (2, 10256347450), (4, 5128173725), (5, 4102538980), (10, 2051269490), (20, 1025634745), (23, 891856300), (25, 820507796), (46, 445928150), (50, 410253898), (92, 222964075), (100, 205126949), (115, 178371260), (137, 149727700), (230, 89185630), (274, 74863850), (460, 44592815), (548, 37431925), (575, 35674252), (685, 29945540), (1150, 17837126), (1370, 14972770), (2300, 8918563), (2740, 7486385), (3151, 6509900), (3425, 5989108), (6302, 3254950), (6850, 2994554), (12604, 1627475), (13700, 1497277), (15755, 1301980), (31510, 650990), (63020, 325495), (65099, 315100), (78775, 260396), (130198, 157550)]