12913000

素因数分解:

$2^3\times 5^3\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 31122000

約数和(自身を除く): 18209000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 125, 148, 185, 200, 250, 296, 349, 370, 500, 698, 740, 925, 1000, 1396, 1480, 1745, 1850, 2792, 3490, 3700, 4625, 6980, 7400, 8725, 9250, 12913, 13960, 17450, 18500, 25826, 34900, 37000, 43625, 51652, 64565, 69800, 87250, 103304, 129130, 174500, 258260, 322825, 349000, 516520, 645650, 1291300, 1614125, 2582600, 3228250, 6456500, 12913000]

約数ペア:

[(1, 12913000), (2, 6456500), (4, 3228250), (5, 2582600), (8, 1614125), (10, 1291300), (20, 645650), (25, 516520), (37, 349000), (40, 322825), (50, 258260), (74, 174500), (100, 129130), (125, 103304), (148, 87250), (185, 69800), (200, 64565), (250, 51652), (296, 43625), (349, 37000), (370, 34900), (500, 25826), (698, 18500), (740, 17450), (925, 13960), (1000, 12913), (1396, 9250), (1480, 8725), (1745, 7400), (1850, 6980), (2792, 4625), (3490, 3700)]