18720892000

素因数分解:

$2^5\times 5^3\times {\mathrm{29}}^1\times {\mathrm{161387}}^1$

素因数の和:161441

約数の個数: 96

約数和(自身を含む): 47583637920

約数和(自身を除く): 28862745920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 80, 100, 116, 125, 145, 160, 200, 232, 250, 290, 400, 464, 500, 580, 725, 800, 928, 1000, 1160, 1450, 2000, 2320, 2900, 3625, 4000, 4640, 5800, 7250, 11600, 14500, 23200, 29000, 58000, 116000, 161387, 322774, 645548, 806935, 1291096, 1613870, 2582192, 3227740, 4034675, 4680223, 5164384, 6455480, 8069350, 9360446, 12910960, 16138700, 18720892, 20173375, 23401115, 25821920, 32277400, 37441784, 40346750, 46802230, 64554800, 74883568, 80693500, 93604460, 117005575, 129109600, 149767136, 161387000, 187208920, 234011150, 322774000, 374417840, 468022300, 585027875, 645548000, 748835680, 936044600, 1170055750, 1872089200, 2340111500, 3744178400, 4680223000, 9360446000, 18720892000]

約数ペア:

[(1, 18720892000), (2, 9360446000), (4, 4680223000), (5, 3744178400), (8, 2340111500), (10, 1872089200), (16, 1170055750), (20, 936044600), (25, 748835680), (29, 645548000), (32, 585027875), (40, 468022300), (50, 374417840), (58, 322774000), (80, 234011150), (100, 187208920), (116, 161387000), (125, 149767136), (145, 129109600), (160, 117005575), (200, 93604460), (232, 80693500), (250, 74883568), (290, 64554800), (400, 46802230), (464, 40346750), (500, 37441784), (580, 32277400), (725, 25821920), (800, 23401115), (928, 20173375), (1000, 18720892), (1160, 16138700), (1450, 12910960), (2000, 9360446), (2320, 8069350), (2900, 6455480), (3625, 5164384), (4000, 4680223), (4640, 4034675), (5800, 3227740), (7250, 2582192), (11600, 1613870), (14500, 1291096), (23200, 806935), (29000, 645548), (58000, 322774), (116000, 161387)]