85440040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{305143}}^1$

素因数の和:305161

約数の個数: 32

約数和(自身を含む): 219703680

約数和(自身を除く): 134263640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 305143, 610286, 1220572, 1525715, 2136001, 2441144, 3051430, 4272002, 6102860, 8544004, 10680005, 12205720, 17088008, 21360010, 42720020, 85440040]

約数ペア:

[(1, 85440040), (2, 42720020), (4, 21360010), (5, 17088008), (7, 12205720), (8, 10680005), (10, 8544004), (14, 6102860), (20, 4272002), (28, 3051430), (35, 2441144), (40, 2136001), (56, 1525715), (70, 1220572), (140, 610286), (280, 305143)]