1291290385

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{68449}}^1$

素因数の和:68486

約数の個数: 32

約数和(自身を含む): 1971360000

約数和(自身を除く): 680069615

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 343, 385, 539, 1715, 2695, 3773, 18865, 68449, 342245, 479143, 752939, 2395715, 3354001, 3764695, 5270573, 16770005, 23478007, 26352865, 36894011, 117390035, 184470055, 258258077, 1291290385]

約数ペア:

[(1, 1291290385), (5, 258258077), (7, 184470055), (11, 117390035), (35, 36894011), (49, 26352865), (55, 23478007), (77, 16770005), (245, 5270573), (343, 3764695), (385, 3354001), (539, 2395715), (1715, 752939), (2695, 479143), (3773, 342245), (18865, 68449)]