16978100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^2\times {\mathrm{101}}^1$

素因数の和:197

約数の個数: 54

約数和(自身を含む): 38136882

約数和(自身を除く): 21158782

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 101, 164, 202, 205, 404, 410, 505, 820, 1010, 1025, 1681, 2020, 2050, 2525, 3362, 4100, 4141, 5050, 6724, 8282, 8405, 10100, 16564, 16810, 20705, 33620, 41410, 42025, 82820, 84050, 103525, 168100, 169781, 207050, 339562, 414100, 679124, 848905, 1697810, 3395620, 4244525, 8489050, 16978100]

約数ペア:

[(1, 16978100), (2, 8489050), (4, 4244525), (5, 3395620), (10, 1697810), (20, 848905), (25, 679124), (41, 414100), (50, 339562), (82, 207050), (100, 169781), (101, 168100), (164, 103525), (202, 84050), (205, 82820), (404, 42025), (410, 41410), (505, 33620), (820, 20705), (1010, 16810), (1025, 16564), (1681, 10100), (2020, 8405), (2050, 8282), (2525, 6724), (3362, 5050), (4100, 4141)]