1091720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{557}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 2862540

約数和(自身を除く): 1770820

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, 557, 980, 1114, 1960, 2228, 2785, 3899, 4456, 5570, 7798, 11140, 15596, 19495, 22280, 27293, 31192, 38990, 54586, 77980, 109172, 136465, 155960, 218344, 272930, 545860, 1091720]

約数ペア:

[(1, 1091720), (2, 545860), (4, 272930), (5, 218344), (7, 155960), (8, 136465), (10, 109172), (14, 77980), (20, 54586), (28, 38990), (35, 31192), (40, 27293), (49, 22280), (56, 19495), (70, 15596), (98, 11140), (140, 7798), (196, 5570), (245, 4456), (280, 3899), (392, 2785), (490, 2228), (557, 1960), (980, 1114)]