12902045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 18170880

約数和(自身を除く): 5268835

約数列:

[1, 5, 13, 19, 31, 65, 95, 155, 247, 337, 403, 589, 1235, 1685, 2015, 2945, 4381, 6403, 7657, 10447, 21905, 32015, 38285, 52235, 83239, 135811, 198493, 416195, 679055, 992465, 2580409, 12902045]

約数ペア:

[(1, 12902045), (5, 2580409), (13, 992465), (19, 679055), (31, 416195), (65, 198493), (95, 135811), (155, 83239), (247, 52235), (337, 38285), (403, 32015), (589, 21905), (1235, 10447), (1685, 7657), (2015, 6403), (2945, 4381)]