20128360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71887}}^1$

素因数の和:71905

約数の個数: 32

約数和(自身を含む): 51759360

約数和(自身を除く): 31631000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71887, 143774, 287548, 359435, 503209, 575096, 718870, 1006418, 1437740, 2012836, 2516045, 2875480, 4025672, 5032090, 10064180, 20128360]

約数ペア:

[(1, 20128360), (2, 10064180), (4, 5032090), (5, 4025672), (7, 2875480), (8, 2516045), (10, 2012836), (14, 1437740), (20, 1006418), (28, 718870), (35, 575096), (40, 503209), (56, 359435), (70, 287548), (140, 143774), (280, 71887)]