278734356

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{653}}^1$

素因数の和:901

約数の個数: 72

約数和(自身を含む): 719881344

約数和(自身を除く): 441146988

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 167, 213, 284, 334, 426, 501, 639, 653, 668, 852, 1002, 1278, 1306, 1503, 1959, 2004, 2556, 2612, 3006, 3918, 5877, 6012, 7836, 11754, 11857, 23508, 23714, 35571, 46363, 47428, 71142, 92726, 106713, 109051, 139089, 142284, 185452, 213426, 218102, 278178, 327153, 417267, 426852, 436204, 556356, 654306, 834534, 981459, 1308612, 1669068, 1962918, 3925836, 7742621, 15485242, 23227863, 30970484, 46455726, 69683589, 92911452, 139367178, 278734356]

約数ペア:

[(1, 278734356), (2, 139367178), (3, 92911452), (4, 69683589), (6, 46455726), (9, 30970484), (12, 23227863), (18, 15485242), (36, 7742621), (71, 3925836), (142, 1962918), (167, 1669068), (213, 1308612), (284, 981459), (334, 834534), (426, 654306), (501, 556356), (639, 436204), (653, 426852), (668, 417267), (852, 327153), (1002, 278178), (1278, 218102), (1306, 213426), (1503, 185452), (1959, 142284), (2004, 139089), (2556, 109051), (2612, 106713), (3006, 92726), (3918, 71142), (5877, 47428), (6012, 46363), (7836, 35571), (11754, 23714), (11857, 23508)]