254415280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{454313}}^1$

素因数の和:454333

約数の個数: 40

約数和(自身を含む): 676019232

約数和(自身を除く): 421603952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 454313, 908626, 1817252, 2271565, 3180191, 3634504, 4543130, 6360382, 7269008, 9086260, 12720764, 15900955, 18172520, 25441528, 31801910, 36345040, 50883056, 63603820, 127207640, 254415280]

約数ペア:

[(1, 254415280), (2, 127207640), (4, 63603820), (5, 50883056), (7, 36345040), (8, 31801910), (10, 25441528), (14, 18172520), (16, 15900955), (20, 12720764), (28, 9086260), (35, 7269008), (40, 6360382), (56, 4543130), (70, 3634504), (80, 3180191), (112, 2271565), (140, 1817252), (280, 908626), (560, 454313)]