12917900

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1279}}^1$

素因数の和:1394

約数の個数: 36

約数和(自身を含む): 28331520

約数和(自身を除く): 15413620

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 1279, 2020, 2525, 2558, 5050, 5116, 6395, 10100, 12790, 25580, 31975, 63950, 127900, 129179, 258358, 516716, 645895, 1291790, 2583580, 3229475, 6458950, 12917900]

約数ペア:

[(1, 12917900), (2, 6458950), (4, 3229475), (5, 2583580), (10, 1291790), (20, 645895), (25, 516716), (50, 258358), (100, 129179), (101, 127900), (202, 63950), (404, 31975), (505, 25580), (1010, 12790), (1279, 10100), (2020, 6395), (2525, 5116), (2558, 5050)]