200039780

素因数分解:

$2^2\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{7349}}^1$

素因数の和:8719

約数の個数: 24

約数和(自身を含む): 420449400

約数和(自身を除く): 220409620

約数列:

[1, 2, 4, 5, 10, 20, 1361, 2722, 5444, 6805, 7349, 13610, 14698, 27220, 29396, 36745, 73490, 146980, 10001989, 20003978, 40007956, 50009945, 100019890, 200039780]

約数ペア:

[(1, 200039780), (2, 100019890), (4, 50009945), (5, 40007956), (10, 20003978), (20, 10001989), (1361, 146980), (2722, 73490), (5444, 36745), (6805, 29396), (7349, 27220), (13610, 14698)]