81170705

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{30119}}^1$

素因数の和:30149

約数の個数: 24

約数和(自身を含む): 123612480

約数和(自身を除く): 42441775

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 30119, 150595, 210833, 331309, 1054165, 1475831, 1656545, 2319163, 7379155, 11595815, 16234141, 81170705]

約数ペア:

[(1, 81170705), (5, 16234141), (7, 11595815), (11, 7379155), (35, 2319163), (49, 1656545), (55, 1475831), (77, 1054165), (245, 331309), (385, 210833), (539, 150595), (2695, 30119)]