19449080

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9923}}^1$

素因数の和:9948

約数の個数: 48

約数和(自身を含む): 50910120

約数和(自身を除く): 31461040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9923, 19846, 39692, 49615, 69461, 79384, 99230, 138922, 198460, 277844, 347305, 396920, 486227, 555688, 694610, 972454, 1389220, 1944908, 2431135, 2778440, 3889816, 4862270, 9724540, 19449080]

約数ペア:

[(1, 19449080), (2, 9724540), (4, 4862270), (5, 3889816), (7, 2778440), (8, 2431135), (10, 1944908), (14, 1389220), (20, 972454), (28, 694610), (35, 555688), (40, 486227), (49, 396920), (56, 347305), (70, 277844), (98, 198460), (140, 138922), (196, 99230), (245, 79384), (280, 69461), (392, 49615), (490, 39692), (980, 19846), (1960, 9923)]