19782280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10093}}^1$

素因数の和:10118

約数の個数: 48

約数和(自身を含む): 51782220

約数和(自身を除く): 31999940

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10093, 20186, 40372, 50465, 70651, 80744, 100930, 141302, 201860, 282604, 353255, 403720, 494557, 565208, 706510, 989114, 1413020, 1978228, 2472785, 2826040, 3956456, 4945570, 9891140, 19782280]

約数ペア:

[(1, 19782280), (2, 9891140), (4, 4945570), (5, 3956456), (7, 2826040), (8, 2472785), (10, 1978228), (14, 1413020), (20, 989114), (28, 706510), (35, 565208), (40, 494557), (49, 403720), (56, 353255), (70, 282604), (98, 201860), (140, 141302), (196, 100930), (245, 80744), (280, 70651), (392, 50465), (490, 40372), (980, 20186), (1960, 10093)]