20278784

素因数分解:

$2^9\times {\mathrm{39607}}^1$

素因数の和:39625

約数の個数: 20

約数和(自身を含む): 40518984

約数和(自身を除く): 20240200

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 39607, 79214, 158428, 316856, 633712, 1267424, 2534848, 5069696, 10139392, 20278784]

約数ペア:

[(1, 20278784), (2, 10139392), (4, 5069696), (8, 2534848), (16, 1267424), (32, 633712), (64, 316856), (128, 158428), (256, 79214), (512, 39607)]