72454840

素因数分解:

$2^3\times 5^1\times {\mathrm{1811371}}^1$

素因数の和:1811382

約数の個数: 16

約数和(自身を含む): 163023480

約数和(自身を除く): 90568640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1811371, 3622742, 7245484, 9056855, 14490968, 18113710, 36227420, 72454840]

約数ペア:

[(1, 72454840), (2, 36227420), (4, 18113710), (5, 14490968), (8, 9056855), (10, 7245484), (20, 3622742), (40, 1811371)]