128376325

素因数分解:

$5^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1361}}^1$

素因数の和:1403

約数の個数: 48

約数和(自身を含む): 202665600

約数和(自身を除く): 74289275

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 175, 245, 275, 343, 385, 539, 1225, 1361, 1715, 1925, 2695, 3773, 6805, 8575, 9527, 13475, 14971, 18865, 34025, 47635, 66689, 74855, 94325, 104797, 238175, 333445, 374275, 466823, 523985, 733579, 1667225, 2334115, 2619925, 3667895, 5135053, 11670575, 18339475, 25675265, 128376325]

約数ペア:

[(1, 128376325), (5, 25675265), (7, 18339475), (11, 11670575), (25, 5135053), (35, 3667895), (49, 2619925), (55, 2334115), (77, 1667225), (175, 733579), (245, 523985), (275, 466823), (343, 374275), (385, 333445), (539, 238175), (1225, 104797), (1361, 94325), (1715, 74855), (1925, 66689), (2695, 47635), (3773, 34025), (6805, 18865), (8575, 14971), (9527, 13475)]