28439012

素因数分解:

$2^2\times 7^2\times {\mathrm{373}}^1\times {\mathrm{389}}^1$

素因数の和:780

約数の個数: 36

約数和(自身を含む): 58198140

約数和(自身を除く): 29759128

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 373, 389, 746, 778, 1492, 1556, 2611, 2723, 5222, 5446, 10444, 10892, 18277, 19061, 36554, 38122, 73108, 76244, 145097, 290194, 580388, 1015679, 2031358, 4062716, 7109753, 14219506, 28439012]

約数ペア:

[(1, 28439012), (2, 14219506), (4, 7109753), (7, 4062716), (14, 2031358), (28, 1015679), (49, 580388), (98, 290194), (196, 145097), (373, 76244), (389, 73108), (746, 38122), (778, 36554), (1492, 19061), (1556, 18277), (2611, 10892), (2723, 10444), (5222, 5446)]