678772220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{118253}}^1$

素因数の和:118310

約数の個数: 48

約数和(自身を含む): 1668800448

約数和(自身を除く): 990028228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5740, 118253, 236506, 473012, 591265, 827771, 1182530, 1655542, 2365060, 3311084, 4138855, 4848373, 8277710, 9696746, 16555420, 19393492, 24241865, 33938611, 48483730, 67877222, 96967460, 135754444, 169693055, 339386110, 678772220]

約数ペア:

[(1, 678772220), (2, 339386110), (4, 169693055), (5, 135754444), (7, 96967460), (10, 67877222), (14, 48483730), (20, 33938611), (28, 24241865), (35, 19393492), (41, 16555420), (70, 9696746), (82, 8277710), (140, 4848373), (164, 4138855), (205, 3311084), (287, 2365060), (410, 1655542), (574, 1182530), (820, 827771), (1148, 591265), (1435, 473012), (2870, 236506), (5740, 118253)]