138839638

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2057

約数の個数: 48

約数和(自身を含む): 261080064

約数和(自身を除く): 122240426

約数列:

[1, 2, 7, 14, 23, 31, 46, 49, 62, 98, 161, 217, 322, 434, 713, 1127, 1426, 1519, 1987, 2254, 3038, 3974, 4991, 9982, 13909, 27818, 34937, 45701, 61597, 69874, 91402, 97363, 123194, 194726, 319907, 431179, 639814, 862358, 1416731, 2239349, 2833462, 3018253, 4478698, 6036506, 9917117, 19834234, 69419819, 138839638]

約数ペア:

[(1, 138839638), (2, 69419819), (7, 19834234), (14, 9917117), (23, 6036506), (31, 4478698), (46, 3018253), (49, 2833462), (62, 2239349), (98, 1416731), (161, 862358), (217, 639814), (322, 431179), (434, 319907), (713, 194726), (1127, 123194), (1426, 97363), (1519, 91402), (1987, 69874), (2254, 61597), (3038, 45701), (3974, 34937), (4991, 27818), (9982, 13909)]