320565

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 32

約数和(自身を含む): 608256

約数和(自身を除く): 287691

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 71, 105, 129, 213, 215, 301, 355, 497, 645, 903, 1065, 1491, 1505, 2485, 3053, 4515, 7455, 9159, 15265, 21371, 45795, 64113, 106855, 320565]

約数ペア:

[(1, 320565), (3, 106855), (5, 64113), (7, 45795), (15, 21371), (21, 15265), (35, 9159), (43, 7455), (71, 4515), (105, 3053), (129, 2485), (213, 1505), (215, 1491), (301, 1065), (355, 903), (497, 645)]