77282800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{3943}}^1$

素因数の和:3975

約数の個数: 90

約数和(自身を含む): 216040488

約数和(自身を除く): 138757688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 2450, 2800, 3920, 3943, 4900, 7886, 9800, 15772, 19600, 19715, 27601, 31544, 39430, 55202, 63088, 78860, 98575, 110404, 138005, 157720, 193207, 197150, 220808, 276010, 315440, 386414, 394300, 441616, 552020, 690025, 772828, 788600, 966035, 1104040, 1380050, 1545656, 1577200, 1932070, 2208080, 2760100, 3091312, 3864140, 4830175, 5520200, 7728280, 9660350, 11040400, 15456560, 19320700, 38641400, 77282800]

約数ペア:

[(1, 77282800), (2, 38641400), (4, 19320700), (5, 15456560), (7, 11040400), (8, 9660350), (10, 7728280), (14, 5520200), (16, 4830175), (20, 3864140), (25, 3091312), (28, 2760100), (35, 2208080), (40, 1932070), (49, 1577200), (50, 1545656), (56, 1380050), (70, 1104040), (80, 966035), (98, 788600), (100, 772828), (112, 690025), (140, 552020), (175, 441616), (196, 394300), (200, 386414), (245, 315440), (280, 276010), (350, 220808), (392, 197150), (400, 193207), (490, 157720), (560, 138005), (700, 110404), (784, 98575), (980, 78860), (1225, 63088), (1400, 55202), (1960, 39430), (2450, 31544), (2800, 27601), (3920, 19715), (3943, 19600), (4900, 15772), (7886, 9800)]