31621780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{68743}}^1$

素因数の和:68775

約数の個数: 24

約数和(自身を含む): 69293952

約数和(自身を除く): 37672172

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 68743, 137486, 274972, 343715, 687430, 1374860, 1581089, 3162178, 6324356, 7905445, 15810890, 31621780]

約数ペア:

[(1, 31621780), (2, 15810890), (4, 7905445), (5, 6324356), (10, 3162178), (20, 1581089), (23, 1374860), (46, 687430), (92, 343715), (115, 274972), (230, 137486), (460, 68743)]