161569280

素因数分解:

$2^9\times 5^1\times {\mathrm{63113}}^1$

素因数の和:63136

約数の個数: 40

約数和(自身を含む): 387393732

約数和(自身を除く): 225824452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 63113, 126226, 252452, 315565, 504904, 631130, 1009808, 1262260, 2019616, 2524520, 4039232, 5049040, 8078464, 10098080, 16156928, 20196160, 32313856, 40392320, 80784640, 161569280]

約数ペア:

[(1, 161569280), (2, 80784640), (4, 40392320), (5, 32313856), (8, 20196160), (10, 16156928), (16, 10098080), (20, 8078464), (32, 5049040), (40, 4039232), (64, 2524520), (80, 2019616), (128, 1262260), (160, 1009808), (256, 631130), (320, 504904), (512, 315565), (640, 252452), (1280, 126226), (2560, 63113)]