164036480

素因数分解:

$2^7\times 5^1\times {\mathrm{256307}}^1$

素因数の和:256326

約数の個数: 32

約数和(自身を含む): 392151240

約数和(自身を除く): 228114760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 256307, 512614, 1025228, 1281535, 2050456, 2563070, 4100912, 5126140, 8201824, 10252280, 16403648, 20504560, 32807296, 41009120, 82018240, 164036480]

約数ペア:

[(1, 164036480), (2, 82018240), (4, 41009120), (5, 32807296), (8, 20504560), (10, 16403648), (16, 10252280), (20, 8201824), (32, 5126140), (40, 4100912), (64, 2563070), (80, 2050456), (128, 1281535), (160, 1025228), (320, 512614), (640, 256307)]