3121940

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1123}}^1$

素因数の和:1271

約数の個数: 24

約数和(自身を含む): 6609120

約数和(自身を除く): 3487180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1123, 1390, 2246, 2780, 4492, 5615, 11230, 22460, 156097, 312194, 624388, 780485, 1560970, 3121940]

約数ペア:

[(1, 3121940), (2, 1560970), (4, 780485), (5, 624388), (10, 312194), (20, 156097), (139, 22460), (278, 11230), (556, 5615), (695, 4492), (1123, 2780), (1390, 2246)]