1640989736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{280607}}^1$

素因数の和:280673

約数の個数: 32

約数和(自身を含む): 3333623040

約数和(自身を除く): 1692633304

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 5848, 280607, 561214, 1122428, 2244856, 4770319, 9540638, 12066101, 19081276, 24132202, 38162552, 48264404, 96528808, 205123717, 410247434, 820494868, 1640989736]

約数ペア:

[(1, 1640989736), (2, 820494868), (4, 410247434), (8, 205123717), (17, 96528808), (34, 48264404), (43, 38162552), (68, 24132202), (86, 19081276), (136, 12066101), (172, 9540638), (344, 4770319), (731, 2244856), (1462, 1122428), (2924, 561214), (5848, 280607)]