20009100800

素因数分解:

$2^9\times 5^2\times {\mathrm{13}}^1\times {\mathrm{120247}}^1$

素因数の和:120288

約数の個数: 120

約数和(自身を含む): 53387947536

約数和(自身を除く): 33378846736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 512, 520, 640, 650, 800, 832, 1040, 1280, 1300, 1600, 1664, 2080, 2560, 2600, 3200, 3328, 4160, 5200, 6400, 6656, 8320, 10400, 12800, 16640, 20800, 33280, 41600, 83200, 120247, 166400, 240494, 480988, 601235, 961976, 1202470, 1563211, 1923952, 2404940, 3006175, 3126422, 3847904, 4809880, 6012350, 6252844, 7695808, 7816055, 9619760, 12024700, 12505688, 15391616, 15632110, 19239520, 24049400, 25011376, 30783232, 31264220, 38479040, 39080275, 48098800, 50022752, 61566464, 62528440, 76958080, 78160550, 96197600, 100045504, 125056880, 153916160, 156321100, 192395200, 200091008, 250113760, 307832320, 312642200, 384790400, 400182016, 500227520, 625284400, 769580800, 800364032, 1000455040, 1250568800, 1539161600, 2000910080, 2501137600, 4001820160, 5002275200, 10004550400, 20009100800]

約数ペア:

[(1, 20009100800), (2, 10004550400), (4, 5002275200), (5, 4001820160), (8, 2501137600), (10, 2000910080), (13, 1539161600), (16, 1250568800), (20, 1000455040), (25, 800364032), (26, 769580800), (32, 625284400), (40, 500227520), (50, 400182016), (52, 384790400), (64, 312642200), (65, 307832320), (80, 250113760), (100, 200091008), (104, 192395200), (128, 156321100), (130, 153916160), (160, 125056880), (200, 100045504), (208, 96197600), (256, 78160550), (260, 76958080), (320, 62528440), (325, 61566464), (400, 50022752), (416, 48098800), (512, 39080275), (520, 38479040), (640, 31264220), (650, 30783232), (800, 25011376), (832, 24049400), (1040, 19239520), (1280, 15632110), (1300, 15391616), (1600, 12505688), (1664, 12024700), (2080, 9619760), (2560, 7816055), (2600, 7695808), (3200, 6252844), (3328, 6012350), (4160, 4809880), (5200, 3847904), (6400, 3126422), (6656, 3006175), (8320, 2404940), (10400, 1923952), (12800, 1563211), (16640, 1202470), (20800, 961976), (33280, 601235), (41600, 480988), (83200, 240494), (120247, 166400)]