20409156

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 54152280

約数和(自身を除く): 33743124

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 113, 116, 173, 174, 226, 261, 339, 346, 348, 452, 519, 522, 678, 692, 1017, 1038, 1044, 1356, 1557, 2034, 2076, 3114, 3277, 4068, 5017, 6228, 6554, 9831, 10034, 13108, 15051, 19549, 19662, 20068, 29493, 30102, 39098, 39324, 45153, 58647, 58986, 60204, 78196, 90306, 117294, 117972, 175941, 180612, 234588, 351882, 566921, 703764, 1133842, 1700763, 2267684, 3401526, 5102289, 6803052, 10204578, 20409156]

約数ペア:

[(1, 20409156), (2, 10204578), (3, 6803052), (4, 5102289), (6, 3401526), (9, 2267684), (12, 1700763), (18, 1133842), (29, 703764), (36, 566921), (58, 351882), (87, 234588), (113, 180612), (116, 175941), (173, 117972), (174, 117294), (226, 90306), (261, 78196), (339, 60204), (346, 58986), (348, 58647), (452, 45153), (519, 39324), (522, 39098), (678, 30102), (692, 29493), (1017, 20068), (1038, 19662), (1044, 19549), (1356, 15051), (1557, 13108), (2034, 10034), (2076, 9831), (3114, 6554), (3277, 6228), (4068, 5017)]