40978820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107839}}^1$

素因数の和:107867

約数の個数: 24

約数和(自身を含む): 90585600

約数和(自身を除く): 49606780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 107839, 215678, 431356, 539195, 1078390, 2048941, 2156780, 4097882, 8195764, 10244705, 20489410, 40978820]

約数ペア:

[(1, 40978820), (2, 20489410), (4, 10244705), (5, 8195764), (10, 4097882), (19, 2156780), (20, 2048941), (38, 1078390), (76, 539195), (95, 431356), (190, 215678), (380, 107839)]