8190425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 10966560

約数和(自身を除く): 2776135

約数列:

[1, 5, 19, 25, 43, 95, 215, 401, 475, 817, 1075, 2005, 4085, 7619, 10025, 17243, 20425, 38095, 86215, 190475, 327617, 431075, 1638085, 8190425]

約数ペア:

[(1, 8190425), (5, 1638085), (19, 431075), (25, 327617), (43, 190475), (95, 86215), (215, 38095), (401, 20425), (475, 17243), (817, 10025), (1075, 7619), (2005, 4085)]