78431620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{206399}}^1$

素因数の和:206427

約数の個数: 24

約数和(自身を含む): 173376000

約数和(自身を除く): 94944380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 206399, 412798, 825596, 1031995, 2063990, 3921581, 4127980, 7843162, 15686324, 19607905, 39215810, 78431620]

約数ペア:

[(1, 78431620), (2, 39215810), (4, 19607905), (5, 15686324), (10, 7843162), (19, 4127980), (20, 3921581), (38, 2063990), (76, 1031995), (95, 825596), (190, 412798), (380, 206399)]