81615118

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1973}}^1$

素因数の和:2068

約数の個数: 32

約数和(自身を含む): 138622176

約数和(自身を除く): 57007058

約数列:

[1, 2, 13, 26, 37, 43, 74, 86, 481, 559, 962, 1118, 1591, 1973, 3182, 3946, 20683, 25649, 41366, 51298, 73001, 84839, 146002, 169678, 949013, 1102907, 1898026, 2205814, 3139043, 6278086, 40807559, 81615118]

約数ペア:

[(1, 81615118), (2, 40807559), (13, 6278086), (26, 3139043), (37, 2205814), (43, 1898026), (74, 1102907), (86, 949013), (481, 169678), (559, 146002), (962, 84839), (1118, 73001), (1591, 51298), (1973, 41366), (3182, 25649), (3946, 20683)]