2109157225

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{90619}}^1$

素因数の和:90662

約数の個数: 36

約数和(自身を含む): 3202510800

約数和(自身を除く): 1093353575

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 475, 665, 931, 1225, 3325, 4655, 23275, 90619, 453095, 634333, 1721761, 2265475, 3171665, 4440331, 8608805, 12052327, 15858325, 22201655, 43044025, 60261635, 84366289, 111008275, 301308175, 421831445, 2109157225]

約数ペア:

[(1, 2109157225), (5, 421831445), (7, 301308175), (19, 111008275), (25, 84366289), (35, 60261635), (49, 43044025), (95, 22201655), (133, 15858325), (175, 12052327), (245, 8608805), (475, 4440331), (665, 3171665), (931, 2265475), (1225, 1721761), (3325, 634333), (4655, 453095), (23275, 90619)]