1229121280

素因数分解:

$2^8\times 5^1\times {\mathrm{960251}}^1$

素因数の和:960272

約数の個数: 36

約数和(自身を含む): 2944132632

約数和(自身を除く): 1715011352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 960251, 1920502, 3841004, 4801255, 7682008, 9602510, 15364016, 19205020, 30728032, 38410040, 61456064, 76820080, 122912128, 153640160, 245824256, 307280320, 614560640, 1229121280]

約数ペア:

[(1, 1229121280), (2, 614560640), (4, 307280320), (5, 245824256), (8, 153640160), (10, 122912128), (16, 76820080), (20, 61456064), (32, 38410040), (40, 30728032), (64, 19205020), (80, 15364016), (128, 9602510), (160, 7682008), (256, 4801255), (320, 3841004), (640, 1920502), (1280, 960251)]