4208980

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{541}}^1$

素因数の和:939

約数の個数: 24

約数和(自身を含む): 8877960

約数和(自身を除く): 4668980

約数列:

[1, 2, 4, 5, 10, 20, 389, 541, 778, 1082, 1556, 1945, 2164, 2705, 3890, 5410, 7780, 10820, 210449, 420898, 841796, 1052245, 2104490, 4208980]

約数ペア:

[(1, 4208980), (2, 2104490), (4, 1052245), (5, 841796), (10, 420898), (20, 210449), (389, 10820), (541, 7780), (778, 5410), (1082, 3890), (1556, 2705), (1945, 2164)]