19413220

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7643}}^1$

素因数の和:7779

約数の個数: 24

約数和(自身を含む): 41094144

約数和(自身を除く): 21680924

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 7643, 15286, 30572, 38215, 76430, 152860, 970661, 1941322, 3882644, 4853305, 9706610, 19413220]

約数ペア:

[(1, 19413220), (2, 9706610), (4, 4853305), (5, 3882644), (10, 1941322), (20, 970661), (127, 152860), (254, 76430), (508, 38215), (635, 30572), (1270, 15286), (2540, 7643)]