64609280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{12619}}^1$

素因数の和:12644

約数の個数: 44

約数和(自身を含む): 154998840

約数和(自身を除く): 90389560

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, 12619, 25238, 50476, 63095, 100952, 126190, 201904, 252380, 403808, 504760, 807616, 1009520, 1615232, 2019040, 3230464, 4038080, 6460928, 8076160, 12921856, 16152320, 32304640, 64609280]

約数ペア:

[(1, 64609280), (2, 32304640), (4, 16152320), (5, 12921856), (8, 8076160), (10, 6460928), (16, 4038080), (20, 3230464), (32, 2019040), (40, 1615232), (64, 1009520), (80, 807616), (128, 504760), (160, 403808), (256, 252380), (320, 201904), (512, 126190), (640, 100952), (1024, 63095), (1280, 50476), (2560, 25238), (5120, 12619)]