64977495

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1999}}^1$

素因数の和:2215

約数の個数: 32

約数和(自身を含む): 114048000

約数和(自身を除く): 49070505

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 197, 591, 985, 1999, 2167, 2955, 5997, 6501, 9995, 10835, 21989, 29985, 32505, 65967, 109945, 329835, 393803, 1181409, 1969015, 4331833, 5907045, 12995499, 21659165, 64977495]

約数ペア:

[(1, 64977495), (3, 21659165), (5, 12995499), (11, 5907045), (15, 4331833), (33, 1969015), (55, 1181409), (165, 393803), (197, 329835), (591, 109945), (985, 65967), (1999, 32505), (2167, 29985), (2955, 21989), (5997, 10835), (6501, 9995)]