31298260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{293}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 77421960

約数和(自身を除く): 46123700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 140, 196, 218, 245, 293, 436, 490, 545, 586, 763, 980, 1090, 1172, 1465, 1526, 2051, 2180, 2930, 3052, 3815, 4102, 5341, 5860, 7630, 8204, 10255, 10682, 14357, 15260, 20510, 21364, 26705, 28714, 31937, 41020, 53410, 57428, 63874, 71785, 106820, 127748, 143570, 159685, 223559, 287140, 319370, 447118, 638740, 894236, 1117795, 1564913, 2235590, 3129826, 4471180, 6259652, 7824565, 15649130, 31298260]

約数ペア:

[(1, 31298260), (2, 15649130), (4, 7824565), (5, 6259652), (7, 4471180), (10, 3129826), (14, 2235590), (20, 1564913), (28, 1117795), (35, 894236), (49, 638740), (70, 447118), (98, 319370), (109, 287140), (140, 223559), (196, 159685), (218, 143570), (245, 127748), (293, 106820), (436, 71785), (490, 63874), (545, 57428), (586, 53410), (763, 41020), (980, 31937), (1090, 28714), (1172, 26705), (1465, 21364), (1526, 20510), (2051, 15260), (2180, 14357), (2930, 10682), (3052, 10255), (3815, 8204), (4102, 7630), (5341, 5860)]