130401280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{25469}}^1$

素因数の和:25494

約数の個数: 44

約数和(自身を含む): 312822540

約数和(自身を除く): 182421260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 25469, 50938, 101876, 127345, 203752, 254690, 407504, 509380, 815008, 1018760, 1630016, 2037520, 3260032, 4075040, 6520064, 8150080, 13040128, 16300160, 26080256, 32600320, 65200640, 130401280]

約数ペア:

[(1, 130401280), (2, 65200640), (4, 32600320), (5, 26080256), (8, 16300160), (10, 13040128), (16, 8150080), (20, 6520064), (32, 4075040), (40, 3260032), (64, 2037520), (80, 1630016), (128, 1018760), (160, 815008), (256, 509380), (320, 407504), (512, 254690), (640, 203752), (1024, 127345), (1280, 101876), (2560, 50938), (5120, 25469)]