109640420

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{39439}}^1$

素因数の和:39587

約数の個数: 24

約数和(自身を含む): 231907200

約数和(自身を除く): 122266780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 39439, 78878, 157756, 197195, 394390, 788780, 5482021, 10964042, 21928084, 27410105, 54820210, 109640420]

約数ペア:

[(1, 109640420), (2, 54820210), (4, 27410105), (5, 21928084), (10, 10964042), (20, 5482021), (139, 788780), (278, 394390), (556, 197195), (695, 157756), (1390, 78878), (2780, 39439)]