28348705

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 44093376

約数和(自身を除く): 15744671

約数列:

[1, 5, 7, 11, 35, 49, 55, 67, 77, 157, 245, 335, 385, 469, 539, 737, 785, 1099, 1727, 2345, 2695, 3283, 3685, 5159, 5495, 7693, 8635, 10519, 12089, 16415, 25795, 36113, 38465, 52595, 60445, 73633, 84623, 115709, 180565, 368165, 423115, 515431, 578545, 809963, 2577155, 4049815, 5669741, 28348705]

約数ペア:

[(1, 28348705), (5, 5669741), (7, 4049815), (11, 2577155), (35, 809963), (49, 578545), (55, 515431), (67, 423115), (77, 368165), (157, 180565), (245, 115709), (335, 84623), (385, 73633), (469, 60445), (539, 52595), (737, 38465), (785, 36113), (1099, 25795), (1727, 16415), (2345, 12089), (2695, 10519), (3283, 8635), (3685, 7693), (5159, 5495)]