1311897618

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^2\times {\mathrm{149}}^1\times {\mathrm{509}}^1$

素因数の和:728

約数の個数: 72

約数和(自身を含む): 2962615500

約数和(自身を除く): 1650717882

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 149, 186, 279, 298, 447, 509, 558, 894, 961, 1018, 1341, 1527, 1922, 2682, 2883, 3054, 4581, 4619, 5766, 8649, 9162, 9238, 13857, 15779, 17298, 27714, 31558, 41571, 47337, 75841, 83142, 94674, 142011, 143189, 151682, 227523, 284022, 286378, 429567, 455046, 489149, 682569, 859134, 978298, 1288701, 1365138, 1467447, 2351071, 2577402, 2934894, 4402341, 4702142, 7053213, 8804682, 14106426, 21159639, 42319278, 72883201, 145766402, 218649603, 437299206, 655948809, 1311897618]

約数ペア:

[(1, 1311897618), (2, 655948809), (3, 437299206), (6, 218649603), (9, 145766402), (18, 72883201), (31, 42319278), (62, 21159639), (93, 14106426), (149, 8804682), (186, 7053213), (279, 4702142), (298, 4402341), (447, 2934894), (509, 2577402), (558, 2351071), (894, 1467447), (961, 1365138), (1018, 1288701), (1341, 978298), (1527, 859134), (1922, 682569), (2682, 489149), (2883, 455046), (3054, 429567), (4581, 286378), (4619, 284022), (5766, 227523), (8649, 151682), (9162, 143189), (9238, 142011), (13857, 94674), (15779, 83142), (17298, 75841), (27714, 47337), (31558, 41571)]