852440

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 1946160

約数和(自身を除く): 1093720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 211, 404, 422, 505, 808, 844, 1010, 1055, 1688, 2020, 2110, 4040, 4220, 8440, 21311, 42622, 85244, 106555, 170488, 213110, 426220, 852440]

約数ペア:

[(1, 852440), (2, 426220), (4, 213110), (5, 170488), (8, 106555), (10, 85244), (20, 42622), (40, 21311), (101, 8440), (202, 4220), (211, 4040), (404, 2110), (422, 2020), (505, 1688), (808, 1055), (844, 1010)]