18775420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{49409}}^1$

素因数の和:49437

約数の個数: 24

約数和(自身を含む): 41504400

約数和(自身を除く): 22728980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 49409, 98818, 197636, 247045, 494090, 938771, 988180, 1877542, 3755084, 4693855, 9387710, 18775420]

約数ペア:

[(1, 18775420), (2, 9387710), (4, 4693855), (5, 3755084), (10, 1877542), (19, 988180), (20, 938771), (38, 494090), (76, 247045), (95, 197636), (190, 98818), (380, 49409)]