2108409880

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{131447}}^1$

素因数の和:131859

約数の個数: 32

約数和(自身を含む): 4755788640

約数和(自身を除く): 2647378760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 16040, 131447, 262894, 525788, 657235, 1051576, 1314470, 2628940, 5257880, 52710247, 105420494, 210840988, 263551235, 421681976, 527102470, 1054204940, 2108409880]

約数ペア:

[(1, 2108409880), (2, 1054204940), (4, 527102470), (5, 421681976), (8, 263551235), (10, 210840988), (20, 105420494), (40, 52710247), (401, 5257880), (802, 2628940), (1604, 1314470), (2005, 1051576), (3208, 657235), (4010, 525788), (8020, 262894), (16040, 131447)]