2489640320

素因数分解:

$2^7\times 5^1\times {\mathrm{3890063}}^1$

素因数の和:3890082

約数の個数: 32

約数和(自身を含む): 5951797920

約数和(自身を除く): 3462157600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 3890063, 7780126, 15560252, 19450315, 31120504, 38900630, 62241008, 77801260, 124482016, 155602520, 248964032, 311205040, 497928064, 622410080, 1244820160, 2489640320]

約数ペア:

[(1, 2489640320), (2, 1244820160), (4, 622410080), (5, 497928064), (8, 311205040), (10, 248964032), (16, 155602520), (20, 124482016), (32, 77801260), (40, 62241008), (64, 38900630), (80, 31120504), (128, 19450315), (160, 15560252), (320, 7780126), (640, 3890063)]