19518080

素因数分解:

$2^7\times 5^1\times {\mathrm{30497}}^1$

素因数の和:30516

約数の個数: 32

約数和(自身を含む): 46661940

約数和(自身を除く): 27143860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 30497, 60994, 121988, 152485, 243976, 304970, 487952, 609940, 975904, 1219880, 1951808, 2439760, 3903616, 4879520, 9759040, 19518080]

約数ペア:

[(1, 19518080), (2, 9759040), (4, 4879520), (5, 3903616), (8, 2439760), (10, 1951808), (16, 1219880), (20, 975904), (32, 609940), (40, 487952), (64, 304970), (80, 243976), (128, 152485), (160, 121988), (320, 60994), (640, 30497)]