2639860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6947}}^1$

素因数の和:6975

約数の個数: 24

約数和(自身を含む): 5836320

約数和(自身を除く): 3196460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 6947, 13894, 27788, 34735, 69470, 131993, 138940, 263986, 527972, 659965, 1319930, 2639860]

約数ペア:

[(1, 2639860), (2, 1319930), (4, 659965), (5, 527972), (10, 263986), (19, 138940), (20, 131993), (38, 69470), (76, 34735), (95, 27788), (190, 13894), (380, 6947)]