87874040

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21751}}^1$

素因数の和:21863

約数の個数: 32

約数和(自身を含む): 199683360

約数和(自身を除く): 111809320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 21751, 43502, 87004, 108755, 174008, 217510, 435020, 870040, 2196851, 4393702, 8787404, 10984255, 17574808, 21968510, 43937020, 87874040]

約数ペア:

[(1, 87874040), (2, 43937020), (4, 21968510), (5, 17574808), (8, 10984255), (10, 8787404), (20, 4393702), (40, 2196851), (101, 870040), (202, 435020), (404, 217510), (505, 174008), (808, 108755), (1010, 87004), (2020, 43502), (4040, 21751)]