81163115

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 110702592

約数和(自身を除く): 29539477

約数列:

[1, 5, 11, 31, 55, 155, 181, 263, 341, 905, 1315, 1705, 1991, 2893, 5611, 8153, 9955, 14465, 28055, 40765, 47603, 61721, 89683, 238015, 308605, 448415, 523633, 1475693, 2618165, 7378465, 16232623, 81163115]

約数ペア:

[(1, 81163115), (5, 16232623), (11, 7378465), (31, 2618165), (55, 1475693), (155, 523633), (181, 448415), (263, 308605), (341, 238015), (905, 89683), (1315, 61721), (1705, 47603), (1991, 40765), (2893, 28055), (5611, 14465), (8153, 9955)]