220067840

素因数分解:

$2^{11}\times 5^1\times {\mathrm{21491}}^1$

素因数の和:21518

約数の個数: 48

約数和(自身を含む): 528058440

約数和(自身を除く): 307990600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 10240, 21491, 42982, 85964, 107455, 171928, 214910, 343856, 429820, 687712, 859640, 1375424, 1719280, 2750848, 3438560, 5501696, 6877120, 11003392, 13754240, 22006784, 27508480, 44013568, 55016960, 110033920, 220067840]

約数ペア:

[(1, 220067840), (2, 110033920), (4, 55016960), (5, 44013568), (8, 27508480), (10, 22006784), (16, 13754240), (20, 11003392), (32, 6877120), (40, 5501696), (64, 3438560), (80, 2750848), (128, 1719280), (160, 1375424), (256, 859640), (320, 687712), (512, 429820), (640, 343856), (1024, 214910), (1280, 171928), (2048, 107455), (2560, 85964), (5120, 42982), (10240, 21491)]