1639897670

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{373553}}^1$

素因数の和:373999

約数の個数: 16

約数和(自身を含む): 2958547680

約数和(自身を除く): 1318650010

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 373553, 747106, 1867765, 3735530, 163989767, 327979534, 819948835, 1639897670]

約数ペア:

[(1, 1639897670), (2, 819948835), (5, 327979534), (10, 163989767), (439, 3735530), (878, 1867765), (2195, 747106), (4390, 373553)]