28342825

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1361}}^1$

素因数の和:1402

約数の個数: 36

約数和(自身を含む): 43319772

約数和(自身を除く): 14976947

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 175, 245, 425, 595, 833, 1225, 1361, 2975, 4165, 6805, 9527, 20825, 23137, 34025, 47635, 66689, 115685, 161959, 238175, 333445, 578425, 809795, 1133713, 1667225, 4048975, 5668565, 28342825]

約数ペア:

[(1, 28342825), (5, 5668565), (7, 4048975), (17, 1667225), (25, 1133713), (35, 809795), (49, 578425), (85, 333445), (119, 238175), (175, 161959), (245, 115685), (425, 66689), (595, 47635), (833, 34025), (1225, 23137), (1361, 20825), (2975, 9527), (4165, 6805)]