65688400

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1693}}^1$

素因数の和:1808

約数の個数: 60

約数和(自身を含む): 159537532

約数和(自身を除く): 93849132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 776, 970, 1552, 1693, 1940, 2425, 3386, 3880, 4850, 6772, 7760, 8465, 9700, 13544, 16930, 19400, 27088, 33860, 38800, 42325, 67720, 84650, 135440, 164221, 169300, 328442, 338600, 656884, 677200, 821105, 1313768, 1642210, 2627536, 3284420, 4105525, 6568840, 8211050, 13137680, 16422100, 32844200, 65688400]

約数ペア:

[(1, 65688400), (2, 32844200), (4, 16422100), (5, 13137680), (8, 8211050), (10, 6568840), (16, 4105525), (20, 3284420), (25, 2627536), (40, 1642210), (50, 1313768), (80, 821105), (97, 677200), (100, 656884), (194, 338600), (200, 328442), (388, 169300), (400, 164221), (485, 135440), (776, 84650), (970, 67720), (1552, 42325), (1693, 38800), (1940, 33860), (2425, 27088), (3386, 19400), (3880, 16930), (4850, 13544), (6772, 9700), (7760, 8465)]