19380380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51001}}^1$

素因数の和:51029

約数の個数: 24

約数和(自身を含む): 42841680

約数和(自身を除く): 23461300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51001, 102002, 204004, 255005, 510010, 969019, 1020020, 1938038, 3876076, 4845095, 9690190, 19380380]

約数ペア:

[(1, 19380380), (2, 9690190), (4, 4845095), (5, 3876076), (10, 1938038), (19, 1020020), (20, 969019), (38, 510010), (76, 255005), (95, 204004), (190, 102002), (380, 51001)]