155396555

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{1997}}^1$

素因数の和:2278

約数の個数: 16

約数和(自身を含む): 189889920

約数和(自身を除く): 34493365

約数列:

[1, 5, 79, 197, 395, 985, 1997, 9985, 15563, 77815, 157763, 393409, 788815, 1967045, 31079311, 155396555]

約数ペア:

[(1, 155396555), (5, 31079311), (79, 1967045), (197, 788815), (395, 393409), (985, 157763), (1997, 77815), (9985, 15563)]