19904092

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 39584160

約数和(自身を除く): 19680068

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 67, 116, 134, 197, 268, 377, 394, 754, 788, 871, 1508, 1742, 1943, 2561, 3484, 3886, 5122, 5713, 7772, 10244, 11426, 13199, 22852, 25259, 26398, 50518, 52796, 74269, 101036, 148538, 171587, 297076, 343174, 382771, 686348, 765542, 1531084, 4976023, 9952046, 19904092]

約数ペア:

[(1, 19904092), (2, 9952046), (4, 4976023), (13, 1531084), (26, 765542), (29, 686348), (52, 382771), (58, 343174), (67, 297076), (116, 171587), (134, 148538), (197, 101036), (268, 74269), (377, 52796), (394, 50518), (754, 26398), (788, 25259), (871, 22852), (1508, 13199), (1742, 11426), (1943, 10244), (2561, 7772), (3484, 5713), (3886, 5122)]