639476426

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{2293}}^1$

素因数の和:2534

約数の個数: 32

約数和(自身を含む): 1040558400

約数和(自身を除く): 401081974

約数列:

[1, 2, 19, 38, 41, 82, 179, 358, 779, 1558, 2293, 3401, 4586, 6802, 7339, 14678, 43567, 87134, 94013, 139441, 188026, 278882, 410447, 820894, 1786247, 3572494, 7798493, 15596986, 16828327, 33656654, 319738213, 639476426]

約数ペア:

[(1, 639476426), (2, 319738213), (19, 33656654), (38, 16828327), (41, 15596986), (82, 7798493), (179, 3572494), (358, 1786247), (779, 820894), (1558, 410447), (2293, 278882), (3401, 188026), (4586, 139441), (6802, 94013), (7339, 87134), (14678, 43567)]