18988896880

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2350111}}^1$

素因数の和:2350225

約数の個数: 40

約数和(自身を含む): 44586324864

約数和(自身を除く): 25597427984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 2350111, 4700222, 9400444, 11750555, 18800888, 23501110, 37601776, 47002220, 94004440, 188008880, 237361211, 474722422, 949444844, 1186806055, 1898889688, 2373612110, 3797779376, 4747224220, 9494448440, 18988896880]

約数ペア:

[(1, 18988896880), (2, 9494448440), (4, 4747224220), (5, 3797779376), (8, 2373612110), (10, 1898889688), (16, 1186806055), (20, 949444844), (40, 474722422), (80, 237361211), (101, 188008880), (202, 94004440), (404, 47002220), (505, 37601776), (808, 23501110), (1010, 18800888), (1616, 11750555), (2020, 9400444), (4040, 4700222), (8080, 2350111)]