2748280

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{541}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 6243840

約数和(自身を除く): 3495560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 541, 635, 1016, 1082, 1270, 2164, 2540, 2705, 4328, 5080, 5410, 10820, 21640, 68707, 137414, 274828, 343535, 549656, 687070, 1374140, 2748280]

約数ペア:

[(1, 2748280), (2, 1374140), (4, 687070), (5, 549656), (8, 343535), (10, 274828), (20, 137414), (40, 68707), (127, 21640), (254, 10820), (508, 5410), (541, 5080), (635, 4328), (1016, 2705), (1082, 2540), (1270, 2164)]