20181245

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{337}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 29203200

約数和(自身を除く): 9021955

約数列:

[1, 5, 7, 29, 35, 59, 145, 203, 295, 337, 413, 1015, 1685, 1711, 2065, 2359, 8555, 9773, 11795, 11977, 19883, 48865, 59885, 68411, 99415, 139181, 342055, 576607, 695905, 2883035, 4036249, 20181245]

約数ペア:

[(1, 20181245), (5, 4036249), (7, 2883035), (29, 695905), (35, 576607), (59, 342055), (145, 139181), (203, 99415), (295, 68411), (337, 59885), (413, 48865), (1015, 19883), (1685, 11977), (1711, 11795), (2065, 9773), (2359, 8555)]