11987920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{21407}}^1$

素因数の和:21427

約数の個数: 40

約数和(自身を含む): 31855104

約数和(自身を除く): 19867184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 21407, 42814, 85628, 107035, 149849, 171256, 214070, 299698, 342512, 428140, 599396, 749245, 856280, 1198792, 1498490, 1712560, 2397584, 2996980, 5993960, 11987920]

約数ペア:

[(1, 11987920), (2, 5993960), (4, 2996980), (5, 2397584), (7, 1712560), (8, 1498490), (10, 1198792), (14, 856280), (16, 749245), (20, 599396), (28, 428140), (35, 342512), (40, 299698), (56, 214070), (70, 171256), (80, 149849), (112, 107035), (140, 85628), (280, 42814), (560, 21407)]