8821225

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:422

約数の個数: 36

約数和(自身を含む): 13429200

約数和(自身を除く): 4607975

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 379, 475, 665, 931, 1225, 1895, 2653, 3325, 4655, 7201, 9475, 13265, 18571, 23275, 36005, 50407, 66325, 92855, 180025, 252035, 352849, 464275, 1260175, 1764245, 8821225]

約数ペア:

[(1, 8821225), (5, 1764245), (7, 1260175), (19, 464275), (25, 352849), (35, 252035), (49, 180025), (95, 92855), (133, 66325), (175, 50407), (245, 36005), (379, 23275), (475, 18571), (665, 13265), (931, 9475), (1225, 7201), (1895, 4655), (2653, 3325)]