20387150

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1879}}^1$

素因数の和:1929

約数の個数: 48

約数和(自身を含む): 44759040

約数和(自身を除く): 24371890

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 155, 175, 217, 310, 350, 434, 775, 1085, 1550, 1879, 2170, 3758, 5425, 9395, 10850, 13153, 18790, 26306, 46975, 58249, 65765, 93950, 116498, 131530, 291245, 328825, 407743, 582490, 657650, 815486, 1456225, 2038715, 2912450, 4077430, 10193575, 20387150]

約数ペア:

[(1, 20387150), (2, 10193575), (5, 4077430), (7, 2912450), (10, 2038715), (14, 1456225), (25, 815486), (31, 657650), (35, 582490), (50, 407743), (62, 328825), (70, 291245), (155, 131530), (175, 116498), (217, 93950), (310, 65765), (350, 58249), (434, 46975), (775, 26306), (1085, 18790), (1550, 13153), (1879, 10850), (2170, 9395), (3758, 5425)]