12798080

素因数分解:

$2^7\times 5^1\times {\mathrm{19997}}^1$

素因数の和:20016

約数の個数: 32

約数和(自身を含む): 30596940

約数和(自身を除く): 17798860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19997, 39994, 79988, 99985, 159976, 199970, 319952, 399940, 639904, 799880, 1279808, 1599760, 2559616, 3199520, 6399040, 12798080]

約数ペア:

[(1, 12798080), (2, 6399040), (4, 3199520), (5, 2559616), (8, 1599760), (10, 1279808), (16, 799880), (20, 639904), (32, 399940), (40, 319952), (64, 199970), (80, 159976), (128, 99985), (160, 79988), (320, 39994), (640, 19997)]