28787920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{51407}}^1$

素因数の和:51427

約数の個数: 40

約数和(自身を含む): 76495104

約数和(自身を除く): 47707184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 51407, 102814, 205628, 257035, 359849, 411256, 514070, 719698, 822512, 1028140, 1439396, 1799245, 2056280, 2878792, 3598490, 4112560, 5757584, 7196980, 14393960, 28787920]

約数ペア:

[(1, 28787920), (2, 14393960), (4, 7196980), (5, 5757584), (7, 4112560), (8, 3598490), (10, 2878792), (14, 2056280), (16, 1799245), (20, 1439396), (28, 1028140), (35, 822512), (40, 719698), (56, 514070), (70, 411256), (80, 359849), (112, 257035), (140, 205628), (280, 102814), (560, 51407)]