28815918

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 64945152

約数和(自身を除く): 36129234

約数列:

[1, 2, 3, 6, 17, 23, 34, 46, 51, 69, 71, 102, 138, 142, 173, 213, 346, 391, 426, 519, 782, 1038, 1173, 1207, 1633, 2346, 2414, 2941, 3266, 3621, 3979, 4899, 5882, 7242, 7958, 8823, 9798, 11937, 12283, 17646, 23874, 24566, 27761, 36849, 55522, 67643, 73698, 83283, 135286, 166566, 202929, 208811, 282509, 405858, 417622, 565018, 626433, 847527, 1252866, 1695054, 4802653, 9605306, 14407959, 28815918]

約数ペア:

[(1, 28815918), (2, 14407959), (3, 9605306), (6, 4802653), (17, 1695054), (23, 1252866), (34, 847527), (46, 626433), (51, 565018), (69, 417622), (71, 405858), (102, 282509), (138, 208811), (142, 202929), (173, 166566), (213, 135286), (346, 83283), (391, 73698), (426, 67643), (519, 55522), (782, 36849), (1038, 27761), (1173, 24566), (1207, 23874), (1633, 17646), (2346, 12283), (2414, 11937), (2941, 9798), (3266, 8823), (3621, 7958), (3979, 7242), (4899, 5882)]