81646780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{177493}}^1$

素因数の和:177525

約数の個数: 24

約数和(自身を含む): 178913952

約数和(自身を除く): 97267172

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 177493, 354986, 709972, 887465, 1774930, 3549860, 4082339, 8164678, 16329356, 20411695, 40823390, 81646780]

約数ペア:

[(1, 81646780), (2, 40823390), (4, 20411695), (5, 16329356), (10, 8164678), (20, 4082339), (23, 3549860), (46, 1774930), (92, 887465), (115, 709972), (230, 354986), (460, 177493)]