156965038220

素因数分解:

$2^2\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{3926089}}^1$

素因数の和:3928097

約数の個数: 24

約数和(自身を含む): 329791560000

約数和(自身を除く): 172826521780

約数列:

[1, 2, 4, 5, 10, 20, 1999, 3998, 7996, 9995, 19990, 39980, 3926089, 7852178, 15704356, 19630445, 39260890, 78521780, 7848251911, 15696503822, 31393007644, 39241259555, 78482519110, 156965038220]

約数ペア:

[(1, 156965038220), (2, 78482519110), (4, 39241259555), (5, 31393007644), (10, 15696503822), (20, 7848251911), (1999, 78521780), (3998, 39260890), (7996, 19630445), (9995, 15704356), (19990, 7852178), (39980, 3926089)]