19818088

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 21550232

約数列:

[1, 2, 4, 8, 23, 37, 41, 46, 71, 74, 82, 92, 142, 148, 164, 184, 284, 296, 328, 568, 851, 943, 1517, 1633, 1702, 1886, 2627, 2911, 3034, 3266, 3404, 3772, 5254, 5822, 6068, 6532, 6808, 7544, 10508, 11644, 12136, 13064, 21016, 23288, 34891, 60421, 66953, 69782, 107707, 120842, 133906, 139564, 215414, 241684, 267812, 279128, 430828, 483368, 535624, 861656, 2477261, 4954522, 9909044, 19818088]

約数ペア:

[(1, 19818088), (2, 9909044), (4, 4954522), (8, 2477261), (23, 861656), (37, 535624), (41, 483368), (46, 430828), (71, 279128), (74, 267812), (82, 241684), (92, 215414), (142, 139564), (148, 133906), (164, 120842), (184, 107707), (284, 69782), (296, 66953), (328, 60421), (568, 34891), (851, 23288), (943, 21016), (1517, 13064), (1633, 12136), (1702, 11644), (1886, 10508), (2627, 7544), (2911, 6808), (3034, 6532), (3266, 6068), (3404, 5822), (3772, 5254)]