2513920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{491}}^1$

素因数の和:516

約数の個数: 44

約数和(自身を含む): 6042744

約数和(自身を除く): 3528824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 491, 512, 640, 982, 1024, 1280, 1964, 2455, 2560, 3928, 4910, 5120, 7856, 9820, 15712, 19640, 31424, 39280, 62848, 78560, 125696, 157120, 251392, 314240, 502784, 628480, 1256960, 2513920]

約数ペア:

[(1, 2513920), (2, 1256960), (4, 628480), (5, 502784), (8, 314240), (10, 251392), (16, 157120), (20, 125696), (32, 78560), (40, 62848), (64, 39280), (80, 31424), (128, 19640), (160, 15712), (256, 9820), (320, 7856), (491, 5120), (512, 4910), (640, 3928), (982, 2560), (1024, 2455), (1280, 1964)]