13405400

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{691}}^1$

素因数の和:804

約数の個数: 48

約数和(自身を含む): 31534440

約数和(自身を除く): 18129040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 691, 776, 970, 1382, 1940, 2425, 2764, 3455, 3880, 4850, 5528, 6910, 9700, 13820, 17275, 19400, 27640, 34550, 67027, 69100, 134054, 138200, 268108, 335135, 536216, 670270, 1340540, 1675675, 2681080, 3351350, 6702700, 13405400]

約数ペア:

[(1, 13405400), (2, 6702700), (4, 3351350), (5, 2681080), (8, 1675675), (10, 1340540), (20, 670270), (25, 536216), (40, 335135), (50, 268108), (97, 138200), (100, 134054), (194, 69100), (200, 67027), (388, 34550), (485, 27640), (691, 19400), (776, 17275), (970, 13820), (1382, 9700), (1940, 6910), (2425, 5528), (2764, 4850), (3455, 3880)]