27806720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{5431}}^1$

素因数の和:5456

約数の個数: 44

約数和(自身を含む): 66715824

約数和(自身を除く): 38909104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 5431, 10862, 21724, 27155, 43448, 54310, 86896, 108620, 173792, 217240, 347584, 434480, 695168, 868960, 1390336, 1737920, 2780672, 3475840, 5561344, 6951680, 13903360, 27806720]

約数ペア:

[(1, 27806720), (2, 13903360), (4, 6951680), (5, 5561344), (8, 3475840), (10, 2780672), (16, 1737920), (20, 1390336), (32, 868960), (40, 695168), (64, 434480), (80, 347584), (128, 217240), (160, 173792), (256, 108620), (320, 86896), (512, 54310), (640, 43448), (1024, 27155), (1280, 21724), (2560, 10862), (5120, 5431)]