20203669220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{502829}}^1$

素因数の和:502893

約数の個数: 72

約数和(自身を含む): 50558550840

約数和(自身を除く): 30354881620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 4018, 5740, 8036, 10045, 20090, 40180, 502829, 1005658, 2011316, 2514145, 3519803, 5028290, 7039606, 10056580, 14079212, 17599015, 20615989, 24638621, 35198030, 41231978, 49277242, 70396060, 82463956, 98554484, 103079945, 123193105, 144311923, 206159890, 246386210, 288623846, 412319780, 492772420, 577247692, 721559615, 1010183461, 1443119230, 2020366922, 2886238460, 4040733844, 5050917305, 10101834610, 20203669220]

約数ペア:

[(1, 20203669220), (2, 10101834610), (4, 5050917305), (5, 4040733844), (7, 2886238460), (10, 2020366922), (14, 1443119230), (20, 1010183461), (28, 721559615), (35, 577247692), (41, 492772420), (49, 412319780), (70, 288623846), (82, 246386210), (98, 206159890), (140, 144311923), (164, 123193105), (196, 103079945), (205, 98554484), (245, 82463956), (287, 70396060), (410, 49277242), (490, 41231978), (574, 35198030), (820, 24638621), (980, 20615989), (1148, 17599015), (1435, 14079212), (2009, 10056580), (2870, 7039606), (4018, 5028290), (5740, 3519803), (8036, 2514145), (10045, 2011316), (20090, 1005658), (40180, 502829)]