81507840

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{10613}}^1$

素因数の和:10639

約数の個数: 80

約数和(自身を含む): 260594928

約数和(自身を除く): 179087088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840, 7680, 10613, 21226, 31839, 42452, 53065, 63678, 84904, 106130, 127356, 159195, 169808, 212260, 254712, 318390, 339616, 424520, 509424, 636780, 679232, 849040, 1018848, 1273560, 1358464, 1698080, 2037696, 2547120, 2716928, 3396160, 4075392, 5094240, 5433856, 6792320, 8150784, 10188480, 13584640, 16301568, 20376960, 27169280, 40753920, 81507840]

約数ペア:

[(1, 81507840), (2, 40753920), (3, 27169280), (4, 20376960), (5, 16301568), (6, 13584640), (8, 10188480), (10, 8150784), (12, 6792320), (15, 5433856), (16, 5094240), (20, 4075392), (24, 3396160), (30, 2716928), (32, 2547120), (40, 2037696), (48, 1698080), (60, 1358464), (64, 1273560), (80, 1018848), (96, 849040), (120, 679232), (128, 636780), (160, 509424), (192, 424520), (240, 339616), (256, 318390), (320, 254712), (384, 212260), (480, 169808), (512, 159195), (640, 127356), (768, 106130), (960, 84904), (1280, 63678), (1536, 53065), (1920, 42452), (2560, 31839), (3840, 21226), (7680, 10613)]