205450420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77237}}^1$

素因数の和:77272

約数の個数: 48

約数和(自身を含む): 519039360

約数和(自身を除く): 313588940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 77237, 154474, 308948, 386185, 540659, 772370, 1081318, 1467503, 1544740, 2162636, 2703295, 2935006, 5406590, 5870012, 7337515, 10272521, 10813180, 14675030, 20545042, 29350060, 41090084, 51362605, 102725210, 205450420]

約数ペア:

[(1, 205450420), (2, 102725210), (4, 51362605), (5, 41090084), (7, 29350060), (10, 20545042), (14, 14675030), (19, 10813180), (20, 10272521), (28, 7337515), (35, 5870012), (38, 5406590), (70, 2935006), (76, 2703295), (95, 2162636), (133, 1544740), (140, 1467503), (190, 1081318), (266, 772370), (380, 540659), (532, 386185), (665, 308948), (1330, 154474), (2660, 77237)]