28253960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100907}}^1$

素因数の和:100925

約数の個数: 32

約数和(自身を含む): 72653760

約数和(自身を除く): 44399800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100907, 201814, 403628, 504535, 706349, 807256, 1009070, 1412698, 2018140, 2825396, 3531745, 4036280, 5650792, 7063490, 14126980, 28253960]

約数ペア:

[(1, 28253960), (2, 14126980), (4, 7063490), (5, 5650792), (7, 4036280), (8, 3531745), (10, 2825396), (14, 2018140), (20, 1412698), (28, 1009070), (35, 807256), (40, 706349), (56, 504535), (70, 403628), (140, 201814), (280, 100907)]