639969318

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{4721}}^1$

素因数の和:5189

約数の個数: 48

約数和(自身を含む): 1471790736

約数和(自身を除く): 831821418

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 443, 886, 1329, 2658, 3987, 4721, 7531, 7974, 9442, 14163, 15062, 22593, 28326, 42489, 45186, 67779, 80257, 84978, 135558, 160514, 240771, 481542, 722313, 1444626, 2091403, 4182806, 6274209, 12548418, 18822627, 35553851, 37645254, 71107702, 106661553, 213323106, 319984659, 639969318]

約数ペア:

[(1, 639969318), (2, 319984659), (3, 213323106), (6, 106661553), (9, 71107702), (17, 37645254), (18, 35553851), (34, 18822627), (51, 12548418), (102, 6274209), (153, 4182806), (306, 2091403), (443, 1444626), (886, 722313), (1329, 481542), (2658, 240771), (3987, 160514), (4721, 135558), (7531, 84978), (7974, 80257), (9442, 67779), (14163, 45186), (15062, 42489), (22593, 28326)]