20107845

素因数分解:

$3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:527

約数の個数: 40

約数和(自身を含む): 36416160

約数和(自身を除く): 16308315

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 131, 135, 379, 393, 405, 655, 1137, 1179, 1895, 1965, 3411, 3537, 5685, 5895, 10233, 10611, 17055, 17685, 30699, 49649, 51165, 53055, 148947, 153495, 248245, 446841, 744735, 1340523, 2234205, 4021569, 6702615, 20107845]

約数ペア:

[(1, 20107845), (3, 6702615), (5, 4021569), (9, 2234205), (15, 1340523), (27, 744735), (45, 446841), (81, 248245), (131, 153495), (135, 148947), (379, 53055), (393, 51165), (405, 49649), (655, 30699), (1137, 17685), (1179, 17055), (1895, 10611), (1965, 10233), (3411, 5895), (3537, 5685)]