2549105920

素因数分解:

$2^8\times 5^1\times {\mathrm{1991489}}^1$

素因数の和:1991510

約数の個数: 36

約数和(自身を含む): 6105908340

約数和(自身を除く): 3556802420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1991489, 3982978, 7965956, 9957445, 15931912, 19914890, 31863824, 39829780, 63727648, 79659560, 127455296, 159319120, 254910592, 318638240, 509821184, 637276480, 1274552960, 2549105920]

約数ペア:

[(1, 2549105920), (2, 1274552960), (4, 637276480), (5, 509821184), (8, 318638240), (10, 254910592), (16, 159319120), (20, 127455296), (32, 79659560), (40, 63727648), (64, 39829780), (80, 31863824), (128, 19914890), (160, 15931912), (256, 9957445), (320, 7965956), (640, 3982978), (1280, 1991489)]