20156150

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:478

約数の個数: 72

約数和(自身を含む): 46012680

約数和(自身を除く): 25856530

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 49, 50, 70, 95, 98, 133, 175, 190, 245, 266, 350, 433, 475, 490, 665, 866, 931, 950, 1225, 1330, 1862, 2165, 2450, 3031, 3325, 4330, 4655, 6062, 6650, 8227, 9310, 10825, 15155, 16454, 21217, 21650, 23275, 30310, 41135, 42434, 46550, 57589, 75775, 82270, 106085, 115178, 151550, 205675, 212170, 287945, 403123, 411350, 530425, 575890, 806246, 1060850, 1439725, 2015615, 2879450, 4031230, 10078075, 20156150]

約数ペア:

[(1, 20156150), (2, 10078075), (5, 4031230), (7, 2879450), (10, 2015615), (14, 1439725), (19, 1060850), (25, 806246), (35, 575890), (38, 530425), (49, 411350), (50, 403123), (70, 287945), (95, 212170), (98, 205675), (133, 151550), (175, 115178), (190, 106085), (245, 82270), (266, 75775), (350, 57589), (433, 46550), (475, 42434), (490, 41135), (665, 30310), (866, 23275), (931, 21650), (950, 21217), (1225, 16454), (1330, 15155), (1862, 10825), (2165, 9310), (2450, 8227), (3031, 6650), (3325, 6062), (4330, 4655)]