2920155

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 5663520

約数和(自身を除く): 2743365

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 137, 145, 147, 203, 245, 411, 435, 609, 685, 735, 959, 1015, 1421, 2055, 2877, 3045, 3973, 4263, 4795, 6713, 7105, 11919, 14385, 19865, 20139, 21315, 27811, 33565, 59595, 83433, 100695, 139055, 194677, 417165, 584031, 973385, 2920155]

約数ペア:

[(1, 2920155), (3, 973385), (5, 584031), (7, 417165), (15, 194677), (21, 139055), (29, 100695), (35, 83433), (49, 59595), (87, 33565), (105, 27811), (137, 21315), (145, 20139), (147, 19865), (203, 14385), (245, 11919), (411, 7105), (435, 6713), (609, 4795), (685, 4263), (735, 3973), (959, 3045), (1015, 2877), (1421, 2055)]