209309968550

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{197}}^1\times {\mathrm{256021}}^1$

素因数の和:256313

約数の個数: 48

約数和(自身を含む): 396008685072

約数和(自身を除く): 186698716522

約数列:

[1, 2, 5, 10, 25, 50, 83, 166, 197, 394, 415, 830, 985, 1970, 2075, 4150, 4925, 9850, 16351, 32702, 81755, 163510, 256021, 408775, 512042, 817550, 1280105, 2560210, 6400525, 12801050, 21249743, 42499486, 50436137, 100872274, 106248715, 212497430, 252180685, 504361370, 531243575, 1062487150, 1260903425, 2521806850, 4186199371, 8372398742, 20930996855, 41861993710, 104654984275, 209309968550]

約数ペア:

[(1, 209309968550), (2, 104654984275), (5, 41861993710), (10, 20930996855), (25, 8372398742), (50, 4186199371), (83, 2521806850), (166, 1260903425), (197, 1062487150), (394, 531243575), (415, 504361370), (830, 252180685), (985, 212497430), (1970, 106248715), (2075, 100872274), (4150, 50436137), (4925, 42499486), (9850, 21249743), (16351, 12801050), (32702, 6400525), (81755, 2560210), (163510, 1280105), (256021, 817550), (408775, 512042)]