20730878

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1291}}^1$

素因数の和:1368

約数の個数: 32

約数和(自身を含む): 37705728

約数和(自身を除く): 16974850

約数列:

[1, 2, 7, 14, 31, 37, 62, 74, 217, 259, 434, 518, 1147, 1291, 2294, 2582, 8029, 9037, 16058, 18074, 40021, 47767, 80042, 95534, 280147, 334369, 560294, 668738, 1480777, 2961554, 10365439, 20730878]

約数ペア:

[(1, 20730878), (2, 10365439), (7, 2961554), (14, 1480777), (31, 668738), (37, 560294), (62, 334369), (74, 280147), (217, 95534), (259, 80042), (434, 47767), (518, 40021), (1147, 18074), (1291, 16058), (2294, 9037), (2582, 8029)]