13689040

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1249}}^1$

素因数の和:1399

約数の個数: 40

約数和(自身を含む): 32085000

約数和(自身を除く): 18395960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1249, 1370, 2192, 2498, 2740, 4996, 5480, 6245, 9992, 10960, 12490, 19984, 24980, 49960, 99920, 171113, 342226, 684452, 855565, 1368904, 1711130, 2737808, 3422260, 6844520, 13689040]

約数ペア:

[(1, 13689040), (2, 6844520), (4, 3422260), (5, 2737808), (8, 1711130), (10, 1368904), (16, 855565), (20, 684452), (40, 342226), (80, 171113), (137, 99920), (274, 49960), (548, 24980), (685, 19984), (1096, 12490), (1249, 10960), (1370, 9992), (2192, 6245), (2498, 5480), (2740, 4996)]