126780280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{288137}}^1$

素因数の和:288159

約数の個数: 32

約数和(自身を含む): 311189040

約数和(自身を除く): 184408760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 288137, 576274, 1152548, 1440685, 2305096, 2881370, 3169507, 5762740, 6339014, 11525480, 12678028, 15847535, 25356056, 31695070, 63390140, 126780280]

約数ペア:

[(1, 126780280), (2, 63390140), (4, 31695070), (5, 25356056), (8, 15847535), (10, 12678028), (11, 11525480), (20, 6339014), (22, 5762740), (40, 3169507), (44, 2881370), (55, 2305096), (88, 1440685), (110, 1152548), (220, 576274), (440, 288137)]