80475440

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7237}}^1$

素因数の和:7389

約数の個数: 40

約数和(自身を含む): 188477520

約数和(自身を除く): 108002080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 7237, 11120, 14474, 28948, 36185, 57896, 72370, 115792, 144740, 289480, 578960, 1005943, 2011886, 4023772, 5029715, 8047544, 10059430, 16095088, 20118860, 40237720, 80475440]

約数ペア:

[(1, 80475440), (2, 40237720), (4, 20118860), (5, 16095088), (8, 10059430), (10, 8047544), (16, 5029715), (20, 4023772), (40, 2011886), (80, 1005943), (139, 578960), (278, 289480), (556, 144740), (695, 115792), (1112, 72370), (1390, 57896), (2224, 36185), (2780, 28948), (5560, 14474), (7237, 11120)]