28489405

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{12149}}^1$

素因数の和:12228

約数の個数: 16

約数和(自身を含む): 39657600

約数和(自身を除く): 11168195

約数列:

[1, 5, 7, 35, 67, 335, 469, 2345, 12149, 60745, 85043, 425215, 813983, 4069915, 5697881, 28489405]

約数ペア:

[(1, 28489405), (5, 5697881), (7, 4069915), (35, 813983), (67, 425215), (335, 85043), (469, 60745), (2345, 12149)]