19936780

素因数分解:

$2^2\times 5^1\times {\mathrm{463}}^1\times {\mathrm{2153}}^1$

素因数の和:2625

約数の個数: 24

約数和(自身を含む): 41977152

約数和(自身を除く): 22040372

約数列:

[1, 2, 4, 5, 10, 20, 463, 926, 1852, 2153, 2315, 4306, 4630, 8612, 9260, 10765, 21530, 43060, 996839, 1993678, 3987356, 4984195, 9968390, 19936780]

約数ペア:

[(1, 19936780), (2, 9968390), (4, 4984195), (5, 3987356), (10, 1993678), (20, 996839), (463, 43060), (926, 21530), (1852, 10765), (2153, 9260), (2315, 8612), (4306, 4630)]