3778940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 8799840

約数和(自身を除く): 5020900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 193, 220, 356, 386, 445, 772, 890, 965, 979, 1780, 1930, 1958, 2123, 3860, 3916, 4246, 4895, 8492, 9790, 10615, 17177, 19580, 21230, 34354, 42460, 68708, 85885, 171770, 188947, 343540, 377894, 755788, 944735, 1889470, 3778940]

約数ペア:

[(1, 3778940), (2, 1889470), (4, 944735), (5, 755788), (10, 377894), (11, 343540), (20, 188947), (22, 171770), (44, 85885), (55, 68708), (89, 42460), (110, 34354), (178, 21230), (193, 19580), (220, 17177), (356, 10615), (386, 9790), (445, 8492), (772, 4895), (890, 4246), (965, 3916), (979, 3860), (1780, 2123), (1930, 1958)]