1286720

素因数分解:

$2^6\times 5^1\times {\mathrm{4021}}^1$

素因数の和:4038

約数の個数: 28

約数和(自身を含む): 3064764

約数和(自身を除く): 1778044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 4021, 8042, 16084, 20105, 32168, 40210, 64336, 80420, 128672, 160840, 257344, 321680, 643360, 1286720]

約数ペア:

[(1, 1286720), (2, 643360), (4, 321680), (5, 257344), (8, 160840), (10, 128672), (16, 80420), (20, 64336), (32, 40210), (40, 32168), (64, 20105), (80, 16084), (160, 8042), (320, 4021)]