1260280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{643}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 3303720

約数和(自身を除く): 2043440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 643, 980, 1286, 1960, 2572, 3215, 4501, 5144, 6430, 9002, 12860, 18004, 22505, 25720, 31507, 36008, 45010, 63014, 90020, 126028, 157535, 180040, 252056, 315070, 630140, 1260280]

約数ペア:

[(1, 1260280), (2, 630140), (4, 315070), (5, 252056), (7, 180040), (8, 157535), (10, 126028), (14, 90020), (20, 63014), (28, 45010), (35, 36008), (40, 31507), (49, 25720), (56, 22505), (70, 18004), (98, 12860), (140, 9002), (196, 6430), (245, 5144), (280, 4501), (392, 3215), (490, 2572), (643, 1960), (980, 1286)]