209585915

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^4\times {\mathrm{409}}^1$

素因数の和:465

約数の個数: 40

約数和(自身を含む): 316946400

約数和(自身を除く): 107360485

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 409, 605, 847, 1331, 2045, 2863, 4235, 4499, 6655, 9317, 14315, 14641, 22495, 31493, 46585, 49489, 73205, 102487, 157465, 247445, 346423, 512435, 544379, 1732115, 2721895, 3810653, 5988169, 19053265, 29940845, 41917183, 209585915]

約数ペア:

[(1, 209585915), (5, 41917183), (7, 29940845), (11, 19053265), (35, 5988169), (55, 3810653), (77, 2721895), (121, 1732115), (385, 544379), (409, 512435), (605, 346423), (847, 247445), (1331, 157465), (2045, 102487), (2863, 73205), (4235, 49489), (4499, 46585), (6655, 31493), (9317, 22495), (14315, 14641)]