19794040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10099}}^1$

素因数の和:10124

約数の個数: 48

約数和(自身を含む): 51813000

約数和(自身を除く): 32018960

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, 10099, 20198, 40396, 50495, 70693, 80792, 100990, 141386, 201980, 282772, 353465, 403960, 494851, 565544, 706930, 989702, 1413860, 1979404, 2474255, 2827720, 3958808, 4948510, 9897020, 19794040]

約数ペア:

[(1, 19794040), (2, 9897020), (4, 4948510), (5, 3958808), (7, 2827720), (8, 2474255), (10, 1979404), (14, 1413860), (20, 989702), (28, 706930), (35, 565544), (40, 494851), (49, 403960), (56, 353465), (70, 282772), (98, 201980), (140, 141386), (196, 100990), (245, 80792), (280, 70693), (392, 50495), (490, 40396), (980, 20198), (1960, 10099)]