20473360

素因数分解:

$2^4\times 5^1\times {\mathrm{255917}}^1$

素因数の和:255930

約数の個数: 20

約数和(自身を含む): 47600748

約数和(自身を除く): 27127388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 255917, 511834, 1023668, 1279585, 2047336, 2559170, 4094672, 5118340, 10236680, 20473360]

約数ペア:

[(1, 20473360), (2, 10236680), (4, 5118340), (5, 4094672), (8, 2559170), (10, 2047336), (16, 1279585), (20, 1023668), (40, 511834), (80, 255917)]