2809485

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{991}}^1$

素因数の和:1015

約数の個数: 40

約数和(自身を含む): 5761536

約数和(自身を除く): 2952051

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 991, 2835, 2973, 4955, 6937, 8919, 14865, 20811, 26757, 34685, 44595, 62433, 80271, 104055, 133785, 187299, 312165, 401355, 561897, 936495, 2809485]

約数ペア:

[(1, 2809485), (3, 936495), (5, 561897), (7, 401355), (9, 312165), (15, 187299), (21, 133785), (27, 104055), (35, 80271), (45, 62433), (63, 44595), (81, 34685), (105, 26757), (135, 20811), (189, 14865), (315, 8919), (405, 6937), (567, 4955), (945, 2973), (991, 2835)]