20803520

素因数分解:

$2^6\times 5^1\times {\mathrm{65011}}^1$

素因数の和:65028

約数の個数: 28

約数和(自身を含む): 49539144

約数和(自身を除く): 28735624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65011, 130022, 260044, 325055, 520088, 650110, 1040176, 1300220, 2080352, 2600440, 4160704, 5200880, 10401760, 20803520]

約数ペア:

[(1, 20803520), (2, 10401760), (4, 5200880), (5, 4160704), (8, 2600440), (10, 2080352), (16, 1300220), (20, 1040176), (32, 650110), (40, 520088), (64, 325055), (80, 260044), (160, 130022), (320, 65011)]