28940420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{76159}}^1$

素因数の和:76187

約数の個数: 24

約数和(自身を含む): 63974400

約数和(自身を除く): 35033980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 76159, 152318, 304636, 380795, 761590, 1447021, 1523180, 2894042, 5788084, 7235105, 14470210, 28940420]

約数ペア:

[(1, 28940420), (2, 14470210), (4, 7235105), (5, 5788084), (10, 2894042), (19, 1523180), (20, 1447021), (38, 761590), (76, 380795), (95, 304636), (190, 152318), (380, 76159)]