80513440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71887}}^1$

素因数の和:71909

約数の個数: 48

約数和(自身を含む): 217389312

約数和(自身を除く): 136875872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 71887, 143774, 287548, 359435, 503209, 575096, 718870, 1006418, 1150192, 1437740, 2012836, 2300384, 2516045, 2875480, 4025672, 5032090, 5750960, 8051344, 10064180, 11501920, 16102688, 20128360, 40256720, 80513440]

約数ペア:

[(1, 80513440), (2, 40256720), (4, 20128360), (5, 16102688), (7, 11501920), (8, 10064180), (10, 8051344), (14, 5750960), (16, 5032090), (20, 4025672), (28, 2875480), (32, 2516045), (35, 2300384), (40, 2012836), (56, 1437740), (70, 1150192), (80, 1006418), (112, 718870), (140, 575096), (160, 503209), (224, 359435), (280, 287548), (560, 143774), (1120, 71887)]