20379200

素因数分解:

$2^6\times 5^2\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:340

約数の個数: 84

約数和(自身を含む): 51401472

約数和(自身を除く): 31022272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 64, 80, 94, 100, 160, 188, 200, 235, 271, 320, 376, 400, 470, 542, 752, 800, 940, 1084, 1175, 1355, 1504, 1600, 1880, 2168, 2350, 2710, 3008, 3760, 4336, 4700, 5420, 6775, 7520, 8672, 9400, 10840, 12737, 13550, 15040, 17344, 18800, 21680, 25474, 27100, 37600, 43360, 50948, 54200, 63685, 75200, 86720, 101896, 108400, 127370, 203792, 216800, 254740, 318425, 407584, 433600, 509480, 636850, 815168, 1018960, 1273700, 2037920, 2547400, 4075840, 5094800, 10189600, 20379200]

約数ペア:

[(1, 20379200), (2, 10189600), (4, 5094800), (5, 4075840), (8, 2547400), (10, 2037920), (16, 1273700), (20, 1018960), (25, 815168), (32, 636850), (40, 509480), (47, 433600), (50, 407584), (64, 318425), (80, 254740), (94, 216800), (100, 203792), (160, 127370), (188, 108400), (200, 101896), (235, 86720), (271, 75200), (320, 63685), (376, 54200), (400, 50948), (470, 43360), (542, 37600), (752, 27100), (800, 25474), (940, 21680), (1084, 18800), (1175, 17344), (1355, 15040), (1504, 13550), (1600, 12737), (1880, 10840), (2168, 9400), (2350, 8672), (2710, 7520), (3008, 6775), (3760, 5420), (4336, 4700)]