28722265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 43323840

約数和(自身を除く): 14601575

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 139, 143, 187, 221, 289, 695, 715, 935, 1105, 1445, 1529, 1807, 2363, 2431, 3179, 3757, 7645, 9035, 11815, 12155, 15895, 18785, 19877, 25993, 30719, 40171, 41327, 99385, 129965, 153595, 200855, 206635, 337909, 441881, 522223, 1689545, 2209405, 2611115, 5744453, 28722265]

約数ペア:

[(1, 28722265), (5, 5744453), (11, 2611115), (13, 2209405), (17, 1689545), (55, 522223), (65, 441881), (85, 337909), (139, 206635), (143, 200855), (187, 153595), (221, 129965), (289, 99385), (695, 41327), (715, 40171), (935, 30719), (1105, 25993), (1445, 19877), (1529, 18785), (1807, 15895), (2363, 12155), (2431, 11815), (3179, 9035), (3757, 7645)]