51564940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{839}}^1$

素因数の和:1294

約数の個数: 48

約数和(自身を含む): 124185600

約数和(自身を除く): 72620660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 439, 839, 878, 1678, 1756, 2195, 3073, 3356, 4195, 4390, 5873, 6146, 8390, 8780, 11746, 12292, 15365, 16780, 23492, 29365, 30730, 58730, 61460, 117460, 368321, 736642, 1473284, 1841605, 2578247, 3683210, 5156494, 7366420, 10312988, 12891235, 25782470, 51564940]

約数ペア:

[(1, 51564940), (2, 25782470), (4, 12891235), (5, 10312988), (7, 7366420), (10, 5156494), (14, 3683210), (20, 2578247), (28, 1841605), (35, 1473284), (70, 736642), (140, 368321), (439, 117460), (839, 61460), (878, 58730), (1678, 30730), (1756, 29365), (2195, 23492), (3073, 16780), (3356, 15365), (4195, 12292), (4390, 11746), (5873, 8780), (6146, 8390)]