28817920

素因数分解:

$2^9\times 5^1\times {\mathrm{11257}}^1$

素因数の和:11280

約数の個数: 40

約数和(自身を含む): 69101604

約数和(自身を除く): 40283684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 11257, 22514, 45028, 56285, 90056, 112570, 180112, 225140, 360224, 450280, 720448, 900560, 1440896, 1801120, 2881792, 3602240, 5763584, 7204480, 14408960, 28817920]

約数ペア:

[(1, 28817920), (2, 14408960), (4, 7204480), (5, 5763584), (8, 3602240), (10, 2881792), (16, 1801120), (20, 1440896), (32, 900560), (40, 720448), (64, 450280), (80, 360224), (128, 225140), (160, 180112), (256, 112570), (320, 90056), (512, 56285), (640, 45028), (1280, 22514), (2560, 11257)]