16516940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{389}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 38132640

約数和(自身を除く): 21615700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 193, 220, 386, 389, 772, 778, 965, 1556, 1930, 1945, 2123, 3860, 3890, 4246, 4279, 7780, 8492, 8558, 10615, 17116, 21230, 21395, 42460, 42790, 75077, 85580, 150154, 300308, 375385, 750770, 825847, 1501540, 1651694, 3303388, 4129235, 8258470, 16516940]

約数ペア:

[(1, 16516940), (2, 8258470), (4, 4129235), (5, 3303388), (10, 1651694), (11, 1501540), (20, 825847), (22, 750770), (44, 375385), (55, 300308), (110, 150154), (193, 85580), (220, 75077), (386, 42790), (389, 42460), (772, 21395), (778, 21230), (965, 17116), (1556, 10615), (1930, 8558), (1945, 8492), (2123, 7780), (3860, 4279), (3890, 4246)]