51640480

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16987}}^1$

素因数の和:17021

約数の個数: 48

約数和(自身を含む): 128429280

約数和(自身を除く): 76788800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 16987, 33974, 67948, 84935, 135896, 169870, 271792, 322753, 339740, 543584, 645506, 679480, 1291012, 1358960, 1613765, 2582024, 2717920, 3227530, 5164048, 6455060, 10328096, 12910120, 25820240, 51640480]

約数ペア:

[(1, 51640480), (2, 25820240), (4, 12910120), (5, 10328096), (8, 6455060), (10, 5164048), (16, 3227530), (19, 2717920), (20, 2582024), (32, 1613765), (38, 1358960), (40, 1291012), (76, 679480), (80, 645506), (95, 543584), (152, 339740), (160, 322753), (190, 271792), (304, 169870), (380, 135896), (608, 84935), (760, 67948), (1520, 33974), (3040, 16987)]