155877885040

素因数分解:

$2^4\times 5^1\times {\mathrm{1948473563}}^1$

素因数の和:1948473576

約数の個数: 20

約数和(自身を含む): 362416082904

約数和(自身を除く): 206538197864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1948473563, 3896947126, 7793894252, 9742367815, 15587788504, 19484735630, 31175577008, 38969471260, 77938942520, 155877885040]

約数ペア:

[(1, 155877885040), (2, 77938942520), (4, 38969471260), (5, 31175577008), (8, 19484735630), (10, 15587788504), (16, 9742367815), (20, 7793894252), (40, 3896947126), (80, 1948473563)]