138078440

素因数分解:

$2^3\times 5^1\times {\mathrm{3451961}}^1$

素因数の和:3451972

約数の個数: 16

約数和(自身を含む): 310676580

約数和(自身を除く): 172598140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3451961, 6903922, 13807844, 17259805, 27615688, 34519610, 69039220, 138078440]

約数ペア:

[(1, 138078440), (2, 69039220), (4, 34519610), (5, 27615688), (8, 17259805), (10, 13807844), (20, 6903922), (40, 3451961)]