201578109

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 285310080

約数和(自身を除く): 83731971

約数列:

[1, 3, 37, 43, 111, 129, 157, 269, 471, 807, 1591, 4773, 5809, 6751, 9953, 11567, 17427, 20253, 29859, 34701, 42233, 126699, 249787, 427979, 749361, 1283937, 1562621, 1816019, 4687863, 5448057, 67192703, 201578109]

約数ペア:

[(1, 201578109), (3, 67192703), (37, 5448057), (43, 4687863), (111, 1816019), (129, 1562621), (157, 1283937), (269, 749361), (471, 427979), (807, 249787), (1591, 126699), (4773, 42233), (5809, 34701), (6751, 29859), (9953, 20253), (11567, 17427)]